278004961

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{587}}^1\times {\mathrm{2143}}^1$

素因数の和:2760

約数の個数: 16

約数和(自身を含む): 317689344

約数和(自身を除く): 39684383

約数列:

[1, 13, 17, 221, 587, 2143, 7631, 9979, 27859, 36431, 129727, 473603, 1257941, 16353233, 21384997, 278004961]

約数ペア:

[(1, 278004961), (13, 21384997), (17, 16353233), (221, 1257941), (587, 473603), (2143, 129727), (7631, 36431), (9979, 27859)]