21346670

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7877}}^1$

素因数の和:8155

約数の個数: 16

約数和(自身を含む): 38570688

約数和(自身を除く): 17224018

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 7877, 15754, 39385, 78770, 2134667, 4269334, 10673335, 21346670]

約数ペア:

[(1, 21346670), (2, 10673335), (5, 4269334), (10, 2134667), (271, 78770), (542, 39385), (1355, 15754), (2710, 7877)]