19057225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{131}}^1$

素因数の和:198

約数の個数: 36

約数和(自身を含む): 27154512

約数和(自身を除く): 8097287

約数列:

[1, 5, 11, 23, 25, 55, 115, 131, 253, 275, 529, 575, 655, 1265, 1441, 2645, 3013, 3275, 5819, 6325, 7205, 13225, 15065, 29095, 33143, 36025, 69299, 75325, 145475, 165715, 346495, 762289, 828575, 1732475, 3811445, 19057225]

約数ペア:

[(1, 19057225), (5, 3811445), (11, 1732475), (23, 828575), (25, 762289), (55, 346495), (115, 165715), (131, 145475), (253, 75325), (275, 69299), (529, 36025), (575, 33143), (655, 29095), (1265, 15065), (1441, 13225), (2645, 7205), (3013, 6325), (3275, 5819)]