20212485

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{70921}}^1$

素因数の和:70948

約数の個数: 16

約数和(自身を含む): 34042560

約数和(自身を除く): 13830075

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 70921, 212763, 354605, 1063815, 1347499, 4042497, 6737495, 20212485]

約数ペア:

[(1, 20212485), (3, 6737495), (5, 4042497), (15, 1347499), (19, 1063815), (57, 354605), (95, 212763), (285, 70921)]