20380780222

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{51521}}^1\times {\mathrm{17981}}^1$

素因数の和:69515

約数の個数: 16

約数和(自身を含む): 33352869744

約数和(自身を除く): 12972089522

約数列:

[1, 2, 11, 22, 17981, 35962, 51521, 103042, 197791, 395582, 566731, 1133462, 926399101, 1852798202, 10190390111, 20380780222]

約数ペア:

[(1, 20380780222), (2, 10190390111), (11, 1852798202), (22, 926399101), (17981, 1133462), (35962, 566731), (51521, 395582), (103042, 197791)]