20900186

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{1051}}^1$

素因数の和:1277

約数の個数: 16

約数和(自身を含む): 32090208

約数和(自身を除く): 11190022

約数列:

[1, 2, 61, 122, 163, 326, 1051, 2102, 9943, 19886, 64111, 128222, 171313, 342626, 10450093, 20900186]

約数ペア:

[(1, 20900186), (2, 10450093), (61, 342626), (122, 171313), (163, 128222), (326, 64111), (1051, 19886), (2102, 9943)]