18979235

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{5657}}^1$

素因数の和:5734

約数の個数: 16

約数和(自身を含む): 25257312

約数和(自身を除く): 6278077

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 5657, 28285, 62227, 311135, 345077, 1725385, 3795847, 18979235]

約数ペア:

[(1, 18979235), (5, 3795847), (11, 1725385), (55, 345077), (61, 311135), (305, 62227), (671, 28285), (3355, 5657)]