20210103

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 30268368

約数和(自身を除く): 10058265

約数列:

[1, 3, 9, 37, 111, 137, 333, 411, 443, 1233, 1329, 3987, 5069, 15207, 16391, 45621, 49173, 60691, 147519, 182073, 546219, 2245567, 6736701, 20210103]

約数ペア:

[(1, 20210103), (3, 6736701), (9, 2245567), (37, 546219), (111, 182073), (137, 147519), (333, 60691), (411, 49173), (443, 45621), (1233, 16391), (1329, 15207), (3987, 5069)]