20038905

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4409}}^1$

素因数の和:4521

約数の個数: 24

約数和(自身を含む): 35085960

約数和(自身を除く): 15047055

約数列:

[1, 3, 5, 9, 15, 45, 101, 303, 505, 909, 1515, 4409, 4545, 13227, 22045, 39681, 66135, 198405, 445309, 1335927, 2226545, 4007781, 6679635, 20038905]

約数ペア:

[(1, 20038905), (3, 6679635), (5, 4007781), (9, 2226545), (15, 1335927), (45, 445309), (101, 198405), (303, 66135), (505, 39681), (909, 22045), (1515, 13227), (4409, 4545)]