20666505

素因数分解:

$3^1\times 5^1\times {\mathrm{877}}^1\times {\mathrm{1571}}^1$

素因数の和:2456

約数の個数: 16

約数和(自身を含む): 33125184

約数和(自身を除く): 12458679

約数列:

[1, 3, 5, 15, 877, 1571, 2631, 4385, 4713, 7855, 13155, 23565, 1377767, 4133301, 6888835, 20666505]

約数ペア:

[(1, 20666505), (3, 6888835), (5, 4133301), (15, 1377767), (877, 23565), (1571, 13155), (2631, 7855), (4385, 4713)]