21305570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 46158336

約数和(自身を除く): 24852766

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 47, 55, 65, 94, 110, 130, 143, 235, 286, 317, 470, 517, 611, 634, 715, 1034, 1222, 1430, 1585, 2585, 3055, 3170, 3487, 4121, 5170, 6110, 6721, 6974, 8242, 13442, 14899, 17435, 20605, 29798, 33605, 34870, 41210, 45331, 67210, 74495, 90662, 148990, 163889, 193687, 226655, 327778, 387374, 453310, 819445, 968435, 1638890, 1936870, 2130557, 4261114, 10652785, 21305570]

約数ペア:

[(1, 21305570), (2, 10652785), (5, 4261114), (10, 2130557), (11, 1936870), (13, 1638890), (22, 968435), (26, 819445), (47, 453310), (55, 387374), (65, 327778), (94, 226655), (110, 193687), (130, 163889), (143, 148990), (235, 90662), (286, 74495), (317, 67210), (470, 45331), (517, 41210), (611, 34870), (634, 33605), (715, 29798), (1034, 20605), (1222, 17435), (1430, 14899), (1585, 13442), (2585, 8242), (3055, 6974), (3170, 6721), (3487, 6110), (4121, 5170)]