21575008

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:300

約数の個数: 96

約数和(自身を含む): 54190080

約数和(自身を除く): 32615072

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 224, 239, 248, 364, 403, 416, 434, 478, 496, 728, 806, 868, 956, 992, 1456, 1612, 1673, 1736, 1912, 2821, 2912, 3107, 3224, 3346, 3472, 3824, 5642, 6214, 6448, 6692, 6944, 7409, 7648, 11284, 12428, 12896, 13384, 14818, 21749, 22568, 24856, 26768, 29636, 43498, 45136, 49712, 51863, 53536, 59272, 86996, 90272, 96317, 99424, 103726, 118544, 173992, 192634, 207452, 237088, 347984, 385268, 414904, 674219, 695968, 770536, 829808, 1348438, 1541072, 1659616, 2696876, 3082144, 5393752, 10787504, 21575008]

約数ペア:

[(1, 21575008), (2, 10787504), (4, 5393752), (7, 3082144), (8, 2696876), (13, 1659616), (14, 1541072), (16, 1348438), (26, 829808), (28, 770536), (31, 695968), (32, 674219), (52, 414904), (56, 385268), (62, 347984), (91, 237088), (104, 207452), (112, 192634), (124, 173992), (182, 118544), (208, 103726), (217, 99424), (224, 96317), (239, 90272), (248, 86996), (364, 59272), (403, 53536), (416, 51863), (434, 49712), (478, 45136), (496, 43498), (728, 29636), (806, 26768), (868, 24856), (956, 22568), (992, 21749), (1456, 14818), (1612, 13384), (1673, 12896), (1736, 12428), (1912, 11284), (2821, 7648), (2912, 7409), (3107, 6944), (3224, 6692), (3346, 6448), (3472, 6214), (3824, 5642)]