20258954

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{787}}^1$

素因数の和:1061

約数の個数: 16

約数和(自身を含む): 31072416

約数和(自身を除く): 10813462

約数列:

[1, 2, 61, 122, 211, 422, 787, 1574, 12871, 25742, 48007, 96014, 166057, 332114, 10129477, 20258954]

約数ペア:

[(1, 20258954), (2, 10129477), (61, 332114), (122, 166057), (211, 96014), (422, 48007), (787, 25742), (1574, 12871)]