21103680

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:141

約数の個数: 224

約数和(自身を含む): 76809600

約数和(自身を除く): 55705920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 32, 38, 39, 40, 48, 52, 57, 60, 64, 65, 76, 78, 80, 89, 95, 96, 104, 114, 120, 130, 152, 156, 160, 178, 190, 192, 195, 208, 228, 240, 247, 260, 267, 285, 304, 312, 320, 356, 380, 390, 416, 445, 456, 480, 494, 520, 534, 570, 608, 624, 712, 741, 760, 780, 832, 890, 912, 960, 988, 1040, 1068, 1140, 1157, 1216, 1235, 1248, 1335, 1424, 1482, 1520, 1560, 1691, 1780, 1824, 1976, 2080, 2136, 2280, 2314, 2470, 2496, 2670, 2848, 2964, 3040, 3120, 3382, 3471, 3560, 3648, 3705, 3952, 4160, 4272, 4560, 4628, 4940, 5073, 5340, 5696, 5785, 5928, 6080, 6240, 6764, 6942, 7120, 7410, 7904, 8455, 8544, 9120, 9256, 9880, 10146, 10680, 11570, 11856, 12480, 13528, 13884, 14240, 14820, 15808, 16910, 17088, 17355, 18240, 18512, 19760, 20292, 21360, 21983, 23140, 23712, 25365, 27056, 27768, 28480, 29640, 33820, 34710, 37024, 39520, 40584, 42720, 43966, 46280, 47424, 50730, 54112, 55536, 59280, 65949, 67640, 69420, 74048, 79040, 81168, 85440, 87932, 92560, 101460, 108224, 109915, 111072, 118560, 131898, 135280, 138840, 162336, 175864, 185120, 202920, 219830, 222144, 237120, 263796, 270560, 277680, 324672, 329745, 351728, 370240, 405840, 439660, 527592, 541120, 555360, 659490, 703456, 811680, 879320, 1055184, 1110720, 1318980, 1406912, 1623360, 1758640, 2110368, 2637960, 3517280, 4220736, 5275920, 7034560, 10551840, 21103680]

約数ペア:

[(1, 21103680), (2, 10551840), (3, 7034560), (4, 5275920), (5, 4220736), (6, 3517280), (8, 2637960), (10, 2110368), (12, 1758640), (13, 1623360), (15, 1406912), (16, 1318980), (19, 1110720), (20, 1055184), (24, 879320), (26, 811680), (30, 703456), (32, 659490), (38, 555360), (39, 541120), (40, 527592), (48, 439660), (52, 405840), (57, 370240), (60, 351728), (64, 329745), (65, 324672), (76, 277680), (78, 270560), (80, 263796), (89, 237120), (95, 222144), (96, 219830), (104, 202920), (114, 185120), (120, 175864), (130, 162336), (152, 138840), (156, 135280), (160, 131898), (178, 118560), (190, 111072), (192, 109915), (195, 108224), (208, 101460), (228, 92560), (240, 87932), (247, 85440), (260, 81168), (267, 79040), (285, 74048), (304, 69420), (312, 67640), (320, 65949), (356, 59280), (380, 55536), (390, 54112), (416, 50730), (445, 47424), (456, 46280), (480, 43966), (494, 42720), (520, 40584), (534, 39520), (570, 37024), (608, 34710), (624, 33820), (712, 29640), (741, 28480), (760, 27768), (780, 27056), (832, 25365), (890, 23712), (912, 23140), (960, 21983), (988, 21360), (1040, 20292), (1068, 19760), (1140, 18512), (1157, 18240), (1216, 17355), (1235, 17088), (1248, 16910), (1335, 15808), (1424, 14820), (1482, 14240), (1520, 13884), (1560, 13528), (1691, 12480), (1780, 11856), (1824, 11570), (1976, 10680), (2080, 10146), (2136, 9880), (2280, 9256), (2314, 9120), (2470, 8544), (2496, 8455), (2670, 7904), (2848, 7410), (2964, 7120), (3040, 6942), (3120, 6764), (3382, 6240), (3471, 6080), (3560, 5928), (3648, 5785), (3705, 5696), (3952, 5340), (4160, 5073), (4272, 4940), (4560, 4628)]