19720588

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{359}}^1\times {\mathrm{443}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 35804160

約数和(自身を除く): 16083572

約数列:

[1, 2, 4, 31, 62, 124, 359, 443, 718, 886, 1436, 1772, 11129, 13733, 22258, 27466, 44516, 54932, 159037, 318074, 636148, 4930147, 9860294, 19720588]

約数ペア:

[(1, 19720588), (2, 9860294), (4, 4930147), (31, 636148), (62, 318074), (124, 159037), (359, 54932), (443, 44516), (718, 27466), (886, 22258), (1436, 13733), (1772, 11129)]