18188215

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 23828112

約数和(自身を除く): 5639897

約数列:

[1, 5, 17, 41, 85, 205, 289, 307, 697, 1445, 1535, 3485, 5219, 11849, 12587, 26095, 59245, 62935, 88723, 213979, 443615, 1069895, 3637643, 18188215]

約数ペア:

[(1, 18188215), (5, 3637643), (17, 1069895), (41, 443615), (85, 213979), (205, 88723), (289, 62935), (307, 59245), (697, 26095), (1445, 12587), (1535, 11849), (3485, 5219)]