28780647

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{33427}}^1$

素因数の和:33478

約数の個数: 16

約数和(自身を含む): 44927232

約数和(自身を除く): 16146585

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 33427, 100281, 233989, 701967, 1370507, 4111521, 9593549, 28780647]

約数ペア:

[(1, 28780647), (3, 9593549), (7, 4111521), (21, 1370507), (41, 701967), (123, 233989), (287, 100281), (861, 33427)]