28919691

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1291}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 44341440

約数和(自身を除く): 15421749

約数列:

[1, 3, 9, 19, 57, 131, 171, 393, 1179, 1291, 2489, 3873, 7467, 11619, 22401, 24529, 73587, 169121, 220761, 507363, 1522089, 3213299, 9639897, 28919691]

約数ペア:

[(1, 28919691), (3, 9639897), (9, 3213299), (19, 1522089), (57, 507363), (131, 220761), (171, 169121), (393, 73587), (1179, 24529), (1291, 22401), (2489, 11619), (3873, 7467)]