21885495

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33931}}^1$

素因数の和:33982

約数の個数: 16

約数和(自身を含む): 35832192

約数和(自身を除く): 13946697

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 33931, 101793, 169655, 508965, 1459033, 4377099, 7295165, 21885495]

約数ペア:

[(1, 21885495), (3, 7295165), (5, 4377099), (15, 1459033), (43, 508965), (129, 169655), (215, 101793), (645, 33931)]