21262215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109037}}^1$

素因数の和:109058

約数の個数: 16

約数和(自身を含む): 36636768

約数和(自身を除く): 15374553

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 109037, 327111, 545185, 1417481, 1635555, 4252443, 7087405, 21262215]

約数ペア:

[(1, 21262215), (3, 7087405), (5, 4252443), (13, 1635555), (15, 1417481), (39, 545185), (65, 327111), (195, 109037)]