20479905

素因数分解:

$3^3\times 5^1\times {\mathrm{151703}}^1$

素因数の和:151717

約数の個数: 16

約数和(自身を含む): 36408960

約数和(自身を除く): 15929055

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151703, 455109, 758515, 1365327, 2275545, 4095981, 6826635, 20479905]

約数ペア:

[(1, 20479905), (3, 6826635), (5, 4095981), (9, 2275545), (15, 1365327), (27, 758515), (45, 455109), (135, 151703)]