217470915

素因数分解:

$3^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{10909}}^1$

素因数の和:11363

約数の個数: 24

約数和(自身を含む): 377835120

約数和(自身を除く): 160364205

約数列:

[1, 3, 5, 9, 15, 45, 443, 1329, 2215, 3987, 6645, 10909, 19935, 32727, 54545, 98181, 163635, 490905, 4832687, 14498061, 24163435, 43494183, 72490305, 217470915]

約数ペア:

[(1, 217470915), (3, 72490305), (5, 43494183), (9, 24163435), (15, 14498061), (45, 4832687), (443, 490905), (1329, 163635), (2215, 98181), (3987, 54545), (6645, 32727), (10909, 19935)]