20915778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{20627}}^1$

素因数の和:20658

約数の個数: 24

約数和(自身を含む): 45299088

約数和(自身を除く): 24383310

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 338, 507, 1014, 20627, 41254, 61881, 123762, 268151, 536302, 804453, 1608906, 3485963, 6971926, 10457889, 20915778]

約数ペア:

[(1, 20915778), (2, 10457889), (3, 6971926), (6, 3485963), (13, 1608906), (26, 804453), (39, 536302), (78, 268151), (169, 123762), (338, 61881), (507, 41254), (1014, 20627)]