13389885

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1997}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 23376600

約数和(自身を除く): 9986715

約数列:

[1, 3, 5, 9, 15, 45, 149, 447, 745, 1341, 1997, 2235, 5991, 6705, 9985, 17973, 29955, 89865, 297553, 892659, 1487765, 2677977, 4463295, 13389885]

約数ペア:

[(1, 13389885), (3, 4463295), (5, 2677977), (9, 1487765), (15, 892659), (45, 297553), (149, 89865), (447, 29955), (745, 17973), (1341, 9985), (1997, 6705), (2235, 5991)]