18440578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:742

約数の個数: 32

約数和(自身を含む): 31696560

約数和(自身を除く): 13255982

約数列:

[1, 2, 13, 26, 29, 37, 58, 74, 377, 481, 661, 754, 962, 1073, 1322, 2146, 8593, 13949, 17186, 19169, 24457, 27898, 38338, 48914, 249197, 317941, 498394, 635882, 709253, 1418506, 9220289, 18440578]

約数ペア:

[(1, 18440578), (2, 9220289), (13, 1418506), (26, 709253), (29, 635882), (37, 498394), (58, 317941), (74, 249197), (377, 48914), (481, 38338), (661, 27898), (754, 24457), (962, 19169), (1073, 17186), (1322, 13949), (2146, 8593)]