20843605

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{3343}}^1$

素因数の和:3420

約数の個数: 16

約数和(自身を含む): 26484480

約数和(自身を除く): 5640875

約数列:

[1, 5, 29, 43, 145, 215, 1247, 3343, 6235, 16715, 96947, 143749, 484735, 718745, 4168721, 20843605]

約数ペア:

[(1, 20843605), (5, 4168721), (29, 718745), (43, 484735), (145, 143749), (215, 96947), (1247, 16715), (3343, 6235)]