81518655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{319681}}^1$

素因数の和:319706

約数の個数: 16

約数和(自身を含む): 138102624

約数和(自身を除く): 56583969

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 319681, 959043, 1598405, 4795215, 5434577, 16303731, 27172885, 81518655]

約数ペア:

[(1, 81518655), (3, 27172885), (5, 16303731), (15, 5434577), (17, 4795215), (51, 1598405), (85, 959043), (255, 319681)]