21666495

素因数分解:

$3^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{3217}}^1$

素因数の和:3674

約数の個数: 16

約数和(自身を含む): 34754400

約数和(自身を除く): 13087905

約数列:

[1, 3, 5, 15, 449, 1347, 2245, 3217, 6735, 9651, 16085, 48255, 1444433, 4333299, 7222165, 21666495]

約数ペア:

[(1, 21666495), (3, 7222165), (5, 4333299), (15, 1444433), (449, 48255), (1347, 16085), (2245, 9651), (3217, 6735)]