128920233

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{12569}}^1$

素因数の和:12848

約数の個数: 16

約数和(自身を含む): 185834880

約数和(自身を除く): 56914647

約数列:

[1, 3, 13, 39, 263, 789, 3419, 10257, 12569, 37707, 163397, 490191, 3305647, 9916941, 42973411, 128920233]

約数ペア:

[(1, 128920233), (3, 42973411), (13, 9916941), (39, 3305647), (263, 490191), (789, 163397), (3419, 37707), (10257, 12569)]