2798181

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 4268160

約数和(自身を除く): 1469979

約数列:

[1, 3, 9, 29, 71, 87, 151, 213, 261, 453, 639, 1359, 2059, 4379, 6177, 10721, 13137, 18531, 32163, 39411, 96489, 310909, 932727, 2798181]

約数ペア:

[(1, 2798181), (3, 932727), (9, 310909), (29, 96489), (71, 39411), (87, 32163), (151, 18531), (213, 13137), (261, 10721), (453, 6177), (639, 4379), (1359, 2059)]