13257975

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4111}}^1$

素因数の和:4167

約数の個数: 24

約数和(自身を含む): 22435072

約数和(自身を除く): 9177097

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 4111, 12333, 20555, 61665, 102775, 176773, 308325, 530319, 883865, 2651595, 4419325, 13257975]

約数ペア:

[(1, 13257975), (3, 4419325), (5, 2651595), (15, 883865), (25, 530319), (43, 308325), (75, 176773), (129, 102775), (215, 61665), (645, 20555), (1075, 12333), (3225, 4111)]