19660665

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{42281}}^1$

素因数の和:42320

約数の個数: 16

約数和(自身を含む): 32472576

約数和(自身を除く): 12811911

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 42281, 126843, 211405, 634215, 1310711, 3932133, 6553555, 19660665]

約数ペア:

[(1, 19660665), (3, 6553555), (5, 3932133), (15, 1310711), (31, 634215), (93, 211405), (155, 126843), (465, 42281)]