21489465

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33317}}^1$

素因数の和:33368

約数の個数: 16

約数和(自身を含む): 35183808

約数和(自身を除く): 13694343

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 33317, 99951, 166585, 499755, 1432631, 4297893, 7163155, 21489465]

約数ペア:

[(1, 21489465), (3, 7163155), (5, 4297893), (15, 1432631), (43, 499755), (129, 166585), (215, 99951), (645, 33317)]