420394678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{28909}}^1$

素因数の和:29583

約数の個数: 16

約数和(自身を含む): 688983120

約数和(自身を除く): 268588442

約数列:

[1, 2, 11, 22, 661, 1322, 7271, 14542, 28909, 57818, 317999, 635998, 19108849, 38217698, 210197339, 420394678]

約数ペア:

[(1, 420394678), (2, 210197339), (11, 38217698), (22, 19108849), (661, 635998), (1322, 317999), (7271, 57818), (14542, 28909)]