28571265

素因数分解:

$3^3\times 5^1\times {\mathrm{211639}}^1$

素因数の和:211653

約数の個数: 16

約数和(自身を含む): 50793600

約数和(自身を除く): 22222335

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 211639, 634917, 1058195, 1904751, 3174585, 5714253, 9523755, 28571265]

約数ペア:

[(1, 28571265), (3, 9523755), (5, 5714253), (9, 3174585), (15, 1904751), (27, 1058195), (45, 634917), (135, 211639)]