21888922

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9851}}^1$

素因数の和:9965

約数の個数: 16

約数和(自身を含む): 36176544

約数和(自身を除く): 14287622

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 9851, 19702, 108361, 216722, 994951, 1989902, 10944461, 21888922]

約数ペア:

[(1, 21888922), (2, 10944461), (11, 1989902), (22, 994951), (101, 216722), (202, 108361), (1111, 19702), (2222, 9851)]