28842009

素因数分解:

$3^1\times 7^1\times {\mathrm{1123}}^1\times {\mathrm{1223}}^1$

素因数の和:2356

約数の個数: 16

約数和(自身を含む): 44024832

約数和(自身を除く): 15182823

約数列:

[1, 3, 7, 21, 1123, 1223, 3369, 3669, 7861, 8561, 23583, 25683, 1373429, 4120287, 9614003, 28842009]

約数ペア:

[(1, 28842009), (3, 9614003), (7, 4120287), (21, 1373429), (1123, 25683), (1223, 23583), (3369, 8561), (3669, 7861)]