218504965

素因数分解:

$5^1\times 7^2\times {\mathrm{839}}^1\times {\mathrm{1063}}^1$

素因数の和:1921

約数の個数: 24

約数和(自身を含む): 305665920

約数和(自身を除く): 87160955

約数列:

[1, 5, 7, 35, 49, 245, 839, 1063, 4195, 5315, 5873, 7441, 29365, 37205, 41111, 52087, 205555, 260435, 891857, 4459285, 6242999, 31214995, 43700993, 218504965]

約数ペア:

[(1, 218504965), (5, 43700993), (7, 31214995), (35, 6242999), (49, 4459285), (245, 891857), (839, 260435), (1063, 205555), (4195, 52087), (5315, 41111), (5873, 37205), (7441, 29365)]