21606790

素因数分解:

$2^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{5701}}^1$

素因数の和:6087

約数の個数: 16

約数和(自身を含む): 39001680

約数和(自身を除く): 17394890

約数列:

[1, 2, 5, 10, 379, 758, 1895, 3790, 5701, 11402, 28505, 57010, 2160679, 4321358, 10803395, 21606790]

約数ペア:

[(1, 21606790), (2, 10803395), (5, 4321358), (10, 2160679), (379, 57010), (758, 28505), (1895, 11402), (3790, 5701)]