219010

素因数分解:

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

素因数の和:210

約数の個数: 24

約数和(自身を含む): 435708

約数和(自身を除く): 216698

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 181, 242, 362, 605, 905, 1210, 1810, 1991, 3982, 9955, 19910, 21901, 43802, 109505, 219010]

約数ペア:

[(1, 219010), (2, 109505), (5, 43802), (10, 21901), (11, 19910), (22, 9955), (55, 3982), (110, 1991), (121, 1810), (181, 1210), (242, 905), (362, 605)]