20707215

素因数分解:

$3^1\times 5^1\times {\mathrm{1163}}^1\times {\mathrm{1187}}^1$

素因数の和:2358

約数の個数: 16

約数和(自身を含む): 33187968

約数和(自身を除く): 12480753

約数列:

[1, 3, 5, 15, 1163, 1187, 3489, 3561, 5815, 5935, 17445, 17805, 1380481, 4141443, 6902405, 20707215]

約数ペア:

[(1, 20707215), (3, 6902405), (5, 4141443), (15, 1380481), (1163, 17805), (1187, 17445), (3489, 5935), (3561, 5815)]