21964905

素因数分解:

$3^3\times 5^1\times {\mathrm{162703}}^1$

素因数の和:162717

約数の個数: 16

約数和(自身を含む): 39048960

約数和(自身を除く): 17084055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 162703, 488109, 813515, 1464327, 2440545, 4392981, 7321635, 21964905]

約数ペア:

[(1, 21964905), (3, 7321635), (5, 4392981), (9, 2440545), (15, 1464327), (27, 813515), (45, 488109), (135, 162703)]