28881489

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1579}}^1$

素因数の和:1669

約数の個数: 32

約数和(自身を含む): 48133120

約数和(自身を除く): 19251631

約数列:

[1, 3, 7, 13, 21, 39, 67, 91, 201, 273, 469, 871, 1407, 1579, 2613, 4737, 6097, 11053, 18291, 20527, 33159, 61581, 105793, 143689, 317379, 431067, 740551, 1375309, 2221653, 4125927, 9627163, 28881489]

約数ペア:

[(1, 28881489), (3, 9627163), (7, 4125927), (13, 2221653), (21, 1375309), (39, 740551), (67, 431067), (91, 317379), (201, 143689), (273, 105793), (469, 61581), (871, 33159), (1407, 20527), (1579, 18291), (2613, 11053), (4737, 6097)]