18186905

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1307}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 25050816

約数和(自身を除く): 6863911

約数列:

[1, 5, 11, 23, 55, 115, 121, 253, 605, 1265, 1307, 2783, 6535, 13915, 14377, 30061, 71885, 150305, 158147, 330671, 790735, 1653355, 3637381, 18186905]

約数ペア:

[(1, 18186905), (5, 3637381), (11, 1653355), (23, 790735), (55, 330671), (115, 158147), (121, 150305), (253, 71885), (605, 30061), (1265, 14377), (1307, 13915), (2783, 6535)]