19915260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331921}}^1$

素因数の和:331933

約数の個数: 24

約数和(自身を含む): 55762896

約数和(自身を除く): 35847636

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331921, 663842, 995763, 1327684, 1659605, 1991526, 3319210, 3983052, 4978815, 6638420, 9957630, 19915260]

約数ペア:

[(1, 19915260), (2, 9957630), (3, 6638420), (4, 4978815), (5, 3983052), (6, 3319210), (10, 1991526), (12, 1659605), (15, 1327684), (20, 995763), (30, 663842), (60, 331921)]