12827215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1571}}^1$

素因数の和:1670

約数の個数: 16

約数和(自身を含む): 16298496

約数和(自身を除く): 3471281

約数列:

[1, 5, 23, 71, 115, 355, 1571, 1633, 7855, 8165, 36133, 111541, 180665, 557705, 2565443, 12827215]

約数ペア:

[(1, 12827215), (5, 2565443), (23, 557705), (71, 180665), (115, 111541), (355, 36133), (1571, 8165), (1633, 7855)]