18513729

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2003}}^1$

素因数の和:2101

約数の個数: 24

約数和(自身を含む): 29178240

約数和(自身を除く): 10664511

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 2003, 3081, 6009, 9243, 18027, 26039, 78117, 158237, 234351, 474711, 1424133, 2057081, 6171243, 18513729]

約数ペア:

[(1, 18513729), (3, 6171243), (9, 2057081), (13, 1424133), (39, 474711), (79, 234351), (117, 158237), (237, 78117), (711, 26039), (1027, 18027), (2003, 9243), (3081, 6009)]