18960399

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1571}}^1$

素因数の和:1732

約数の個数: 20

約数和(自身を含む): 28531800

約数和(自身を除く): 9571401

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 1571, 4023, 4713, 12069, 14139, 42417, 127251, 234079, 702237, 2106711, 6320133, 18960399]

約数ペア:

[(1, 18960399), (3, 6320133), (9, 2106711), (27, 702237), (81, 234079), (149, 127251), (447, 42417), (1341, 14139), (1571, 12069), (4023, 4713)]