21012746

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13487}}^1$

素因数の和:13549

約数の個数: 16

約数和(自身を含む): 33989760

約数和(自身を除く): 12977014

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 13487, 26974, 256253, 512506, 552967, 1105934, 10506373, 21012746]

約数ペア:

[(1, 21012746), (2, 10506373), (19, 1105934), (38, 552967), (41, 512506), (82, 256253), (779, 26974), (1558, 13487)]