28781097

素因数分解:

$3^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1\times {\mathrm{293}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 38949120

約数和(自身を除く): 10168023

約数列:

[1, 3, 137, 239, 293, 411, 717, 879, 32743, 40141, 70027, 98229, 120423, 210081, 9593699, 28781097]

約数ペア:

[(1, 28781097), (3, 9593699), (137, 210081), (239, 120423), (293, 98229), (411, 70027), (717, 40141), (879, 32743)]