19807810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{180071}}^1$

素因数の和:180089

約数の個数: 16

約数和(自身を含む): 38895552

約数和(自身を除く): 19087742

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 180071, 360142, 900355, 1800710, 1980781, 3961562, 9903905, 19807810]

約数ペア:

[(1, 19807810), (2, 9903905), (5, 3961562), (10, 1980781), (11, 1800710), (22, 900355), (55, 360142), (110, 180071)]