20471690

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20269}}^1$

素因数の和:20377

約数の個数: 16

約数和(自身を含む): 37215720

約数和(自身を除く): 16744030

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20269, 40538, 101345, 202690, 2047169, 4094338, 10235845, 20471690]

約数ペア:

[(1, 20471690), (2, 10235845), (5, 4094338), (10, 2047169), (101, 202690), (202, 101345), (505, 40538), (1010, 20269)]