21577264

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{13093}}^1$

素因数の和:13204

約数の個数: 20

約数和(自身を含む): 42215056

約数和(自身を除く): 20637792

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 13093, 26186, 52372, 104744, 209488, 1348579, 2697158, 5394316, 10788632, 21577264]

約数ペア:

[(1, 21577264), (2, 10788632), (4, 5394316), (8, 2697158), (16, 1348579), (103, 209488), (206, 104744), (412, 52372), (824, 26186), (1648, 13093)]