18496390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{929}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 36560160

約数和(自身を除く): 18063770

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181, 362, 905, 929, 1810, 1858, 1991, 3982, 4645, 9290, 9955, 10219, 19910, 20438, 51095, 102190, 168149, 336298, 840745, 1681490, 1849639, 3699278, 9248195, 18496390]

約数ペア:

[(1, 18496390), (2, 9248195), (5, 3699278), (10, 1849639), (11, 1681490), (22, 840745), (55, 336298), (110, 168149), (181, 102190), (362, 51095), (905, 20438), (929, 19910), (1810, 10219), (1858, 9955), (1991, 9290), (3982, 4645)]