20308005

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12197}}^1$

素因数の和:12245

約数の個数: 24

約数和(自身を含む): 36154872

約数和(自身を除く): 15846867

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12197, 36591, 60985, 109773, 182955, 451289, 548865, 1353867, 2256445, 4061601, 6769335, 20308005]

約数ペア:

[(1, 20308005), (3, 6769335), (5, 4061601), (9, 2256445), (15, 1353867), (37, 548865), (45, 451289), (111, 182955), (185, 109773), (333, 60985), (555, 36591), (1665, 12197)]