28686921

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{59}}^2\times {\mathrm{67}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 40452384

約数和(自身を除く): 11765463

約数列:

[1, 3, 41, 59, 67, 123, 177, 201, 2419, 2747, 3481, 3953, 7257, 8241, 10443, 11859, 142721, 162073, 233227, 428163, 486219, 699681, 9562307, 28686921]

約数ペア:

[(1, 28686921), (3, 9562307), (41, 699681), (59, 486219), (67, 428163), (123, 233227), (177, 162073), (201, 142721), (2419, 11859), (2747, 10443), (3481, 8241), (3953, 7257)]