18248905

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 23717592

約数和(自身を除く): 5468687

約数列:

[1, 5, 17, 73, 85, 173, 289, 365, 865, 1241, 1445, 2941, 6205, 12629, 14705, 21097, 49997, 63145, 105485, 214693, 249985, 1073465, 3649781, 18248905]

約数ペア:

[(1, 18248905), (5, 3649781), (17, 1073465), (73, 249985), (85, 214693), (173, 105485), (289, 63145), (365, 49997), (865, 21097), (1241, 14705), (1445, 12629), (2941, 6205)]