21568560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:283

約数の個数: 160

約数和(自身を含む): 74661888

約数和(自身を除く): 53093328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 39, 40, 48, 52, 60, 62, 65, 78, 80, 93, 104, 120, 124, 130, 155, 156, 186, 195, 208, 223, 240, 248, 260, 310, 312, 372, 390, 403, 446, 465, 496, 520, 620, 624, 669, 744, 780, 806, 892, 930, 1040, 1115, 1209, 1240, 1338, 1488, 1560, 1612, 1784, 1860, 2015, 2230, 2418, 2480, 2676, 2899, 3120, 3224, 3345, 3568, 3720, 4030, 4460, 4836, 5352, 5798, 6045, 6448, 6690, 6913, 7440, 8060, 8697, 8920, 9672, 10704, 11596, 12090, 13380, 13826, 14495, 16120, 17394, 17840, 19344, 20739, 23192, 24180, 26760, 27652, 28990, 32240, 34565, 34788, 41478, 43485, 46384, 48360, 53520, 55304, 57980, 69130, 69576, 82956, 86970, 89869, 96720, 103695, 110608, 115960, 138260, 139152, 165912, 173940, 179738, 207390, 231920, 269607, 276520, 331824, 347880, 359476, 414780, 449345, 539214, 553040, 695760, 718952, 829560, 898690, 1078428, 1348035, 1437904, 1659120, 1797380, 2156856, 2696070, 3594760, 4313712, 5392140, 7189520, 10784280, 21568560]

約数ペア:

[(1, 21568560), (2, 10784280), (3, 7189520), (4, 5392140), (5, 4313712), (6, 3594760), (8, 2696070), (10, 2156856), (12, 1797380), (13, 1659120), (15, 1437904), (16, 1348035), (20, 1078428), (24, 898690), (26, 829560), (30, 718952), (31, 695760), (39, 553040), (40, 539214), (48, 449345), (52, 414780), (60, 359476), (62, 347880), (65, 331824), (78, 276520), (80, 269607), (93, 231920), (104, 207390), (120, 179738), (124, 173940), (130, 165912), (155, 139152), (156, 138260), (186, 115960), (195, 110608), (208, 103695), (223, 96720), (240, 89869), (248, 86970), (260, 82956), (310, 69576), (312, 69130), (372, 57980), (390, 55304), (403, 53520), (446, 48360), (465, 46384), (496, 43485), (520, 41478), (620, 34788), (624, 34565), (669, 32240), (744, 28990), (780, 27652), (806, 26760), (892, 24180), (930, 23192), (1040, 20739), (1115, 19344), (1209, 17840), (1240, 17394), (1338, 16120), (1488, 14495), (1560, 13826), (1612, 13380), (1784, 12090), (1860, 11596), (2015, 10704), (2230, 9672), (2418, 8920), (2480, 8697), (2676, 8060), (2899, 7440), (3120, 6913), (3224, 6690), (3345, 6448), (3568, 6045), (3720, 5798), (4030, 5352), (4460, 4836)]