18802091

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4003}}^1$

素因数の和:4082

約数の個数: 16

約数和(自身を含む): 23831808

約数和(自身を除く): 5029717

約数列:

[1, 7, 11, 61, 77, 427, 671, 4003, 4697, 28021, 44033, 244183, 308231, 1709281, 2686013, 18802091]

約数ペア:

[(1, 18802091), (7, 2686013), (11, 1709281), (61, 308231), (77, 244183), (427, 44033), (671, 28021), (4003, 4697)]