20866406

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{10657}}^1$

素因数の和:10759

約数の個数: 16

約数和(自身を含む): 34531920

約数和(自身を除く): 13665514

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 10657, 21314, 117227, 234454, 948473, 1896946, 10433203, 20866406]

約数ペア:

[(1, 20866406), (2, 10433203), (11, 1896946), (22, 948473), (89, 234454), (178, 117227), (979, 21314), (1958, 10657)]