21540810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{3967}}^1$

素因数の和:4158

約数の個数: 32

約数和(自身を含む): 51996672

約数和(自身を除く): 30455862

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 181, 362, 543, 905, 1086, 1810, 2715, 3967, 5430, 7934, 11901, 19835, 23802, 39670, 59505, 119010, 718027, 1436054, 2154081, 3590135, 4308162, 7180270, 10770405, 21540810]

約数ペア:

[(1, 21540810), (2, 10770405), (3, 7180270), (5, 4308162), (6, 3590135), (10, 2154081), (15, 1436054), (30, 718027), (181, 119010), (362, 59505), (543, 39670), (905, 23802), (1086, 19835), (1810, 11901), (2715, 7934), (3967, 5430)]