18856475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{359}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 25712640

約数和(自身を除く): 6856165

約数列:

[1, 5, 11, 25, 55, 191, 275, 359, 955, 1795, 2101, 3949, 4775, 8975, 10505, 19745, 52525, 68569, 98725, 342845, 754259, 1714225, 3771295, 18856475]

約数ペア:

[(1, 18856475), (5, 3771295), (11, 1714225), (25, 754259), (55, 342845), (191, 98725), (275, 68569), (359, 52525), (955, 19745), (1795, 10505), (2101, 8975), (3949, 4775)]