18195385

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 24098904

約数和(自身を除く): 5903519

約数列:

[1, 5, 13, 61, 65, 169, 305, 353, 793, 845, 1765, 3965, 4589, 10309, 21533, 22945, 51545, 59657, 107665, 279929, 298285, 1399645, 3639077, 18195385]

約数ペア:

[(1, 18195385), (5, 3639077), (13, 1399645), (61, 298285), (65, 279929), (169, 107665), (305, 59657), (353, 51545), (793, 22945), (845, 21533), (1765, 10309), (3965, 4589)]