21675577

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 27570368

約数和(自身を除く): 5894791

約数列:

[1, 7, 11, 77, 121, 157, 163, 847, 1099, 1141, 1727, 1793, 12089, 12551, 18997, 19723, 25591, 132979, 138061, 179137, 281501, 1970507, 3096511, 21675577]

約数ペア:

[(1, 21675577), (7, 3096511), (11, 1970507), (77, 281501), (121, 179137), (157, 138061), (163, 132979), (847, 25591), (1099, 19723), (1141, 18997), (1727, 12551), (1793, 12089)]