2021990407

素因数分解:

${\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{661}}^1\times {\mathrm{977}}^1$

素因数の和:1770

約数の個数: 16

約数和(自身を含む): 2113231104

約数和(自身を除く): 91240697

約数列:

[1, 31, 101, 661, 977, 3131, 20491, 30287, 66761, 98677, 645797, 2069591, 3058987, 20019707, 65225497, 2021990407]

約数ペア:

[(1, 2021990407), (31, 65225497), (101, 20019707), (661, 3058987), (977, 2069591), (3131, 645797), (20491, 98677), (30287, 66761)]