20210018

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1\times {\mathrm{317}}^1$

素因数の和:697

約数の個数: 16

約数和(自身を含む): 30772224

約数和(自身を除く): 10562206

約数列:

[1, 2, 127, 251, 254, 317, 502, 634, 31877, 40259, 63754, 79567, 80518, 159134, 10105009, 20210018]

約数ペア:

[(1, 20210018), (2, 10105009), (127, 159134), (251, 80518), (254, 79567), (317, 63754), (502, 40259), (634, 31877)]