21093740

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5827}}^1$

素因数の和:6017

約数の個数: 24

約数和(自身を含む): 44549232

約数和(自身を除く): 23455492

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 5827, 11654, 23308, 29135, 58270, 116540, 1054687, 2109374, 4218748, 5273435, 10546870, 21093740]

約数ペア:

[(1, 21093740), (2, 10546870), (4, 5273435), (5, 4218748), (10, 2109374), (20, 1054687), (181, 116540), (362, 58270), (724, 29135), (905, 23308), (1810, 11654), (3620, 5827)]