21409479720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1\times {\mathrm{4261}}^1$

素因数の和:5116

約数の個数: 192

約数和(自身を含む): 73780845840

約数和(自身を除く): 52371366120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 306, 340, 360, 408, 510, 612, 680, 765, 821, 1020, 1224, 1530, 1642, 2040, 2463, 3060, 3284, 4105, 4261, 4926, 6120, 6568, 7389, 8210, 8522, 9852, 12315, 12783, 13957, 14778, 16420, 17044, 19704, 21305, 24630, 25566, 27914, 29556, 32840, 34088, 36945, 38349, 41871, 42610, 49260, 51132, 55828, 59112, 63915, 69785, 72437, 73890, 76698, 83742, 85220, 98520, 102264, 111656, 125613, 127830, 139570, 144874, 147780, 153396, 167484, 170440, 191745, 209355, 217311, 251226, 255660, 279140, 289748, 295560, 306792, 334968, 362185, 383490, 418710, 434622, 502452, 511320, 558280, 579496, 628065, 651933, 724370, 766980, 837420, 869244, 1004904, 1086555, 1256130, 1303866, 1448740, 1533960, 1674840, 1738488, 2173110, 2512260, 2607732, 2897480, 3259665, 3498281, 4346220, 5024520, 5215464, 6519330, 6996562, 8692440, 10494843, 13038660, 13993124, 17491405, 20989686, 26077320, 27986248, 31484529, 34982810, 41979372, 52474215, 59470777, 62969058, 69965620, 83958744, 104948430, 118941554, 125938116, 139931240, 157422645, 178412331, 209896860, 237883108, 251876232, 297353885, 314845290, 356824662, 419793720, 475766216, 535236993, 594707770, 629690580, 713649324, 892061655, 1070473986, 1189415540, 1259381160, 1427298648, 1784123310, 2140947972, 2378831080, 2676184965, 3568246620, 4281895944, 5352369930, 7136493240, 10704739860, 21409479720]

約数ペア:

[(1, 21409479720), (2, 10704739860), (3, 7136493240), (4, 5352369930), (5, 4281895944), (6, 3568246620), (8, 2676184965), (9, 2378831080), (10, 2140947972), (12, 1784123310), (15, 1427298648), (17, 1259381160), (18, 1189415540), (20, 1070473986), (24, 892061655), (30, 713649324), (34, 629690580), (36, 594707770), (40, 535236993), (45, 475766216), (51, 419793720), (60, 356824662), (68, 314845290), (72, 297353885), (85, 251876232), (90, 237883108), (102, 209896860), (120, 178412331), (136, 157422645), (153, 139931240), (170, 125938116), (180, 118941554), (204, 104948430), (255, 83958744), (306, 69965620), (340, 62969058), (360, 59470777), (408, 52474215), (510, 41979372), (612, 34982810), (680, 31484529), (765, 27986248), (821, 26077320), (1020, 20989686), (1224, 17491405), (1530, 13993124), (1642, 13038660), (2040, 10494843), (2463, 8692440), (3060, 6996562), (3284, 6519330), (4105, 5215464), (4261, 5024520), (4926, 4346220), (6120, 3498281), (6568, 3259665), (7389, 2897480), (8210, 2607732), (8522, 2512260), (9852, 2173110), (12315, 1738488), (12783, 1674840), (13957, 1533960), (14778, 1448740), (16420, 1303866), (17044, 1256130), (19704, 1086555), (21305, 1004904), (24630, 869244), (25566, 837420), (27914, 766980), (29556, 724370), (32840, 651933), (34088, 628065), (36945, 579496), (38349, 558280), (41871, 511320), (42610, 502452), (49260, 434622), (51132, 418710), (55828, 383490), (59112, 362185), (63915, 334968), (69785, 306792), (72437, 295560), (73890, 289748), (76698, 279140), (83742, 255660), (85220, 251226), (98520, 217311), (102264, 209355), (111656, 191745), (125613, 170440), (127830, 167484), (139570, 153396), (144874, 147780)]