21663994

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{7517}}^1$

素因数の和:7661

約数の個数: 16

約数和(自身を含む): 35725536

約数和(自身を除く): 14061542

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 7517, 15034, 82687, 165374, 984727, 1969454, 10831997, 21663994]

約数ペア:

[(1, 21663994), (2, 10831997), (11, 1969454), (22, 984727), (131, 165374), (262, 82687), (1441, 15034), (2882, 7517)]