217810905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{2731}}^1$

素因数の和:3161

約数の個数: 32

約数和(自身を含む): 376360320

約数和(自身を除く): 158549415

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 409, 1227, 2045, 2731, 5317, 6135, 8193, 13655, 15951, 26585, 35503, 40965, 79755, 106509, 177515, 532545, 1116979, 3350937, 5584895, 14520727, 16754685, 43562181, 72603635, 217810905]

約数ペア:

[(1, 217810905), (3, 72603635), (5, 43562181), (13, 16754685), (15, 14520727), (39, 5584895), (65, 3350937), (195, 1116979), (409, 532545), (1227, 177515), (2045, 106509), (2731, 79755), (5317, 40965), (6135, 35503), (8193, 26585), (13655, 15951)]