21113686

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15733}}^1$

素因数の和:15807

約数の個数: 16

約数和(自身を含む): 35118288

約数和(自身を除く): 14004602

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15733, 31466, 173063, 346126, 959713, 1919426, 10556843, 21113686]

約数ペア:

[(1, 21113686), (2, 10556843), (11, 1919426), (22, 959713), (61, 346126), (122, 173063), (671, 31466), (1342, 15733)]