21000814920

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{2473}}^1\times {\mathrm{2621}}^1$

素因数の和:5117

約数の個数: 160

約数和(自身を含む): 70641556920

約数和(自身を除く): 49640742000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 2473, 2621, 3240, 4946, 5242, 7419, 7863, 9892, 10484, 12365, 13105, 14838, 15726, 19784, 20968, 22257, 23589, 24730, 26210, 29676, 31452, 37095, 39315, 44514, 47178, 49460, 52420, 59352, 62904, 66771, 70767, 74190, 78630, 89028, 94356, 98920, 104840, 111285, 117945, 133542, 141534, 148380, 157260, 178056, 188712, 200313, 212301, 222570, 235890, 267084, 283068, 296760, 314520, 333855, 353835, 400626, 424602, 445140, 471780, 534168, 566136, 667710, 707670, 801252, 849204, 890280, 943560, 1001565, 1061505, 1335420, 1415340, 1602504, 1698408, 2003130, 2123010, 2670840, 2830680, 4006260, 4246020, 6481733, 8012520, 8492040, 12963466, 19445199, 25926932, 32408665, 38890398, 51853864, 58335597, 64817330, 77780796, 97225995, 116671194, 129634660, 155561592, 175006791, 194451990, 233342388, 259269320, 291677985, 350013582, 388903980, 466684776, 525020373, 583355970, 700027164, 777807960, 875033955, 1050040746, 1166711940, 1400054328, 1750067910, 2100081492, 2333423880, 2625101865, 3500135820, 4200162984, 5250203730, 7000271640, 10500407460, 21000814920]

約数ペア:

[(1, 21000814920), (2, 10500407460), (3, 7000271640), (4, 5250203730), (5, 4200162984), (6, 3500135820), (8, 2625101865), (9, 2333423880), (10, 2100081492), (12, 1750067910), (15, 1400054328), (18, 1166711940), (20, 1050040746), (24, 875033955), (27, 777807960), (30, 700027164), (36, 583355970), (40, 525020373), (45, 466684776), (54, 388903980), (60, 350013582), (72, 291677985), (81, 259269320), (90, 233342388), (108, 194451990), (120, 175006791), (135, 155561592), (162, 129634660), (180, 116671194), (216, 97225995), (270, 77780796), (324, 64817330), (360, 58335597), (405, 51853864), (540, 38890398), (648, 32408665), (810, 25926932), (1080, 19445199), (1620, 12963466), (2473, 8492040), (2621, 8012520), (3240, 6481733), (4946, 4246020), (5242, 4006260), (7419, 2830680), (7863, 2670840), (9892, 2123010), (10484, 2003130), (12365, 1698408), (13105, 1602504), (14838, 1415340), (15726, 1335420), (19784, 1061505), (20968, 1001565), (22257, 943560), (23589, 890280), (24730, 849204), (26210, 801252), (29676, 707670), (31452, 667710), (37095, 566136), (39315, 534168), (44514, 471780), (47178, 445140), (49460, 424602), (52420, 400626), (59352, 353835), (62904, 333855), (66771, 314520), (70767, 296760), (74190, 283068), (78630, 267084), (89028, 235890), (94356, 222570), (98920, 212301), (104840, 200313), (111285, 188712), (117945, 178056), (133542, 157260), (141534, 148380)]