21357424

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121349}}^1$

素因数の和:121368

約数の個数: 20

約数和(自身を含む): 45142200

約数和(自身を除く): 23784776

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121349, 242698, 485396, 970792, 1334839, 1941584, 2669678, 5339356, 10678712, 21357424]

約数ペア:

[(1, 21357424), (2, 10678712), (4, 5339356), (8, 2669678), (11, 1941584), (16, 1334839), (22, 970792), (44, 485396), (88, 242698), (176, 121349)]