21721106

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22961}}^1$

素因数の和:23017

約数の個数: 16

約数和(自身を含む): 36371808

約数和(自身を除く): 14650702

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 22961, 45922, 252571, 505142, 987323, 1974646, 10860553, 21721106]

約数ペア:

[(1, 21721106), (2, 10860553), (11, 1974646), (22, 987323), (43, 505142), (86, 252571), (473, 45922), (946, 22961)]