209771001

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{111521}}^1$

素因数の和:111557

約数の個数: 24

約数和(自身を含む): 347948640

約数和(自身を除く): 138177639

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 111521, 334563, 1003689, 1226731, 2118899, 3680193, 6356697, 11040579, 19070091, 23307889, 69923667, 209771001]

約数ペア:

[(1, 209771001), (3, 69923667), (9, 23307889), (11, 19070091), (19, 11040579), (33, 6356697), (57, 3680193), (99, 2118899), (171, 1226731), (209, 1003689), (627, 334563), (1881, 111521)]