215322910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{19381}}^1$

素因数の和:19500

約数の個数: 32

約数和(自身を含む): 427024224

約数和(自身を除く): 211701314

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 2222, 5555, 11110, 19381, 38762, 96905, 193810, 213191, 426382, 1065955, 1957481, 2131910, 3914962, 9787405, 19574810, 21532291, 43064582, 107661455, 215322910]

約数ペア:

[(1, 215322910), (2, 107661455), (5, 43064582), (10, 21532291), (11, 19574810), (22, 9787405), (55, 3914962), (101, 2131910), (110, 1957481), (202, 1065955), (505, 426382), (1010, 213191), (1111, 193810), (2222, 96905), (5555, 38762), (11110, 19381)]