20871598

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22063}}^1$

素因数の和:22119

約数の個数: 16

約数和(自身を含む): 34949376

約数和(自身を除く): 14077778

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 22063, 44126, 242693, 485386, 948709, 1897418, 10435799, 20871598]

約数ペア:

[(1, 20871598), (2, 10435799), (11, 1897418), (22, 948709), (43, 485386), (86, 242693), (473, 44126), (946, 22063)]