20411388

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{7177}}^1$

素因数の和:7266

約数の個数: 36

約数和(自身を含む): 52255840

約数和(自身を除く): 31844452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 711, 948, 1422, 2844, 7177, 14354, 21531, 28708, 43062, 64593, 86124, 129186, 258372, 566983, 1133966, 1700949, 2267932, 3401898, 5102847, 6803796, 10205694, 20411388]

約数ペア:

[(1, 20411388), (2, 10205694), (3, 6803796), (4, 5102847), (6, 3401898), (9, 2267932), (12, 1700949), (18, 1133966), (36, 566983), (79, 258372), (158, 129186), (237, 86124), (316, 64593), (474, 43062), (711, 28708), (948, 21531), (1422, 14354), (2844, 7177)]