21961455

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{31151}}^1$

素因数の和:31206

約数の個数: 16

約数和(自身を含む): 35887104

約数和(自身を除く): 13925649

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 31151, 93453, 155755, 467265, 1464097, 4392291, 7320485, 21961455]

約数ペア:

[(1, 21961455), (3, 7320485), (5, 4392291), (15, 1464097), (47, 467265), (141, 155755), (235, 93453), (705, 31151)]