21288634

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{827}}^1$

素因数の和:1101

約数の個数: 16

約数和(自身を含む): 32649696

約数和(自身を除く): 11361062

約数列:

[1, 2, 61, 122, 211, 422, 827, 1654, 12871, 25742, 50447, 100894, 174497, 348994, 10644317, 21288634]

約数ペア:

[(1, 21288634), (2, 10644317), (61, 348994), (122, 174497), (211, 100894), (422, 50447), (827, 25742), (1654, 12871)]