21620548736

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{617}}^1\times {\mathrm{8831}}^1$

素因数の和:9493

約数の個数: 64

約数和(自身を含む): 44538716160

約数和(自身を除く): 22918167424

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 617, 992, 1234, 1984, 2468, 3968, 4936, 8831, 9872, 17662, 19127, 19744, 35324, 38254, 39488, 70648, 76508, 78976, 141296, 153016, 273761, 282592, 306032, 547522, 565184, 612064, 1095044, 1130368, 1224128, 2190088, 2448256, 4380176, 5448727, 8760352, 10897454, 17520704, 21794908, 35041408, 43589816, 87179632, 168910537, 174359264, 337821074, 348718528, 675642148, 697437056, 1351284296, 2702568592, 5405137184, 10810274368, 21620548736]

約数ペア:

[(1, 21620548736), (2, 10810274368), (4, 5405137184), (8, 2702568592), (16, 1351284296), (31, 697437056), (32, 675642148), (62, 348718528), (64, 337821074), (124, 174359264), (128, 168910537), (248, 87179632), (496, 43589816), (617, 35041408), (992, 21794908), (1234, 17520704), (1984, 10897454), (2468, 8760352), (3968, 5448727), (4936, 4380176), (8831, 2448256), (9872, 2190088), (17662, 1224128), (19127, 1130368), (19744, 1095044), (35324, 612064), (38254, 565184), (39488, 547522), (70648, 306032), (76508, 282592), (78976, 273761), (141296, 153016)]