21475569

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{683}}^1$

素因数の和:956

約数の個数: 16

約数和(自身を含む): 29417472

約数和(自身を除く): 7941903

約数列:

[1, 3, 47, 141, 223, 669, 683, 2049, 10481, 31443, 32101, 96303, 152309, 456927, 7158523, 21475569]

約数ペア:

[(1, 21475569), (3, 7158523), (47, 456927), (141, 152309), (223, 96303), (669, 32101), (683, 31443), (2049, 10481)]