28415709

素因数分解:

$3^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{1229}}^1$

素因数の和:1609

約数の個数: 24

約数和(自身を含む): 47074560

約数和(自身を除く): 18658851

約数列:

[1, 3, 7, 9, 21, 63, 367, 1101, 1229, 2569, 3303, 3687, 7707, 8603, 11061, 23121, 25809, 77427, 451043, 1353129, 3157301, 4059387, 9471903, 28415709]

約数ペア:

[(1, 28415709), (3, 9471903), (7, 4059387), (9, 3157301), (21, 1353129), (63, 451043), (367, 77427), (1101, 25809), (1229, 23121), (2569, 11061), (3303, 8603), (3687, 7707)]