81138705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{318191}}^1$

素因数の和:318216

約数の個数: 16

約数和(自身を含む): 137458944

約数和(自身を除く): 56320239

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 318191, 954573, 1590955, 4772865, 5409247, 16227741, 27046235, 81138705]

約数ペア:

[(1, 81138705), (3, 27046235), (5, 16227741), (15, 5409247), (17, 4772865), (51, 1590955), (85, 954573), (255, 318191)]