81331995

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{318949}}^1$

素因数の和:318974

約数の個数: 16

約数和(自身を含む): 137786400

約数和(自身を除く): 56454405

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 318949, 956847, 1594745, 4784235, 5422133, 16266399, 27110665, 81331995]

約数ペア:

[(1, 81331995), (3, 27110665), (5, 16266399), (15, 5422133), (17, 4784235), (51, 1594745), (85, 956847), (255, 318949)]