18726565

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2381}}^1$

素因数の和:2421

約数の個数: 24

約数和(自身を含む): 26611704

約数和(自身を除く): 7885139

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 2381, 7865, 11905, 26191, 30953, 130955, 154765, 288101, 340483, 1440505, 1702415, 3745313, 18726565]

約数ペア:

[(1, 18726565), (5, 3745313), (11, 1702415), (13, 1440505), (55, 340483), (65, 288101), (121, 154765), (143, 130955), (605, 30953), (715, 26191), (1573, 11905), (2381, 7865)]