208545309

素因数分解:

$3^2\times 7^1\times {\mathrm{503}}^1\times {\mathrm{6581}}^1$

素因数の和:7097

約数の個数: 24

約数和(自身を含む): 345002112

約数和(自身を除く): 136456803

約数列:

[1, 3, 7, 9, 21, 63, 503, 1509, 3521, 4527, 6581, 10563, 19743, 31689, 46067, 59229, 138201, 414603, 3310243, 9930729, 23171701, 29792187, 69515103, 208545309]

約数ペア:

[(1, 208545309), (3, 69515103), (7, 29792187), (9, 23171701), (21, 9930729), (63, 3310243), (503, 414603), (1509, 138201), (3521, 59229), (4527, 46067), (6581, 31689), (10563, 19743)]