21183945

素因数分解:

$3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{3217}}^1$

素因数の和:3664

約数の個数: 16

約数和(自身を含む): 33982080

約数和(自身を除く): 12798135

約数列:

[1, 3, 5, 15, 439, 1317, 2195, 3217, 6585, 9651, 16085, 48255, 1412263, 4236789, 7061315, 21183945]

約数ペア:

[(1, 21183945), (3, 7061315), (5, 4236789), (15, 1412263), (439, 48255), (1317, 16085), (2195, 9651), (3217, 6585)]