28635867

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:380

約数の個数: 36

約数和(自身を含む): 45619704

約数和(自身を除く): 16983837

約数列:

[1, 3, 9, 13, 39, 67, 117, 169, 201, 281, 507, 603, 843, 871, 1521, 2529, 2613, 3653, 7839, 10959, 11323, 18827, 32877, 33969, 47489, 56481, 101907, 142467, 169443, 244751, 427401, 734253, 2202759, 3181763, 9545289, 28635867]

約数ペア:

[(1, 28635867), (3, 9545289), (9, 3181763), (13, 2202759), (39, 734253), (67, 427401), (117, 244751), (169, 169443), (201, 142467), (281, 101907), (507, 56481), (603, 47489), (843, 33969), (871, 32877), (1521, 18827), (2529, 11323), (2613, 10959), (3653, 7839)]