20683790

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20479}}^1$

素因数の和:20587

約数の個数: 16

約数和(自身を含む): 37601280

約数和(自身を除く): 16917490

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20479, 40958, 102395, 204790, 2068379, 4136758, 10341895, 20683790]

約数ペア:

[(1, 20683790), (2, 10341895), (5, 4136758), (10, 2068379), (101, 204790), (202, 102395), (505, 40958), (1010, 20479)]