21822250

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{2129}}^1$

素因数の和:2187

約数の個数: 32

約数和(自身を含む): 41867280

約数和(自身を除く): 20045030

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 410, 1025, 2050, 2129, 4258, 5125, 10250, 10645, 21290, 53225, 87289, 106450, 174578, 266125, 436445, 532250, 872890, 2182225, 4364450, 10911125, 21822250]

約数ペア:

[(1, 21822250), (2, 10911125), (5, 4364450), (10, 2182225), (25, 872890), (41, 532250), (50, 436445), (82, 266125), (125, 174578), (205, 106450), (250, 87289), (410, 53225), (1025, 21290), (2050, 10645), (2129, 10250), (4258, 5125)]