19783841

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11171}}^1$

素因数の和:11212

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 5956447

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11171, 78197, 122881, 256933, 860167, 1798531, 2826263, 19783841]

約数ペア:

[(1, 19783841), (7, 2826263), (11, 1798531), (23, 860167), (77, 256933), (161, 122881), (253, 78197), (1771, 11171)]