131499915

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{213821}}^1$

素因数の和:213870

約数の個数: 16

約数和(自身を含む): 215532576

約数和(自身を除く): 84032661

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 213821, 641463, 1069105, 3207315, 8766661, 26299983, 43833305, 131499915]

約数ペア:

[(1, 131499915), (3, 43833305), (5, 26299983), (15, 8766661), (41, 3207315), (123, 1069105), (205, 641463), (615, 213821)]