19889122

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{8951}}^1$

素因数の和:9065

約数の個数: 16

約数和(自身を含む): 32871744

約数和(自身を除く): 12982622

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 8951, 17902, 98461, 196922, 904051, 1808102, 9944561, 19889122]

約数ペア:

[(1, 19889122), (2, 9944561), (11, 1808102), (22, 904051), (101, 196922), (202, 98461), (1111, 17902), (2222, 8951)]