20959404

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 29601876

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 151, 172, 258, 269, 302, 453, 516, 538, 604, 807, 906, 1076, 1614, 1812, 3228, 6493, 11567, 12986, 19479, 23134, 25972, 34701, 38958, 40619, 46268, 69402, 77916, 81238, 121857, 138804, 162476, 243714, 487428, 1746617, 3493234, 5239851, 6986468, 10479702, 20959404]

約数ペア:

[(1, 20959404), (2, 10479702), (3, 6986468), (4, 5239851), (6, 3493234), (12, 1746617), (43, 487428), (86, 243714), (129, 162476), (151, 138804), (172, 121857), (258, 81238), (269, 77916), (302, 69402), (453, 46268), (516, 40619), (538, 38958), (604, 34701), (807, 25972), (906, 23134), (1076, 19479), (1614, 12986), (1812, 11567), (3228, 6493)]