20284905

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{9871}}^1$

素因数の和:10016

約数の個数: 16

約数和(自身を含む): 32696064

約数和(自身を除く): 12411159

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 9871, 29613, 49355, 148065, 1352327, 4056981, 6761635, 20284905]

約数ペア:

[(1, 20284905), (3, 6761635), (5, 4056981), (15, 1352327), (137, 148065), (411, 49355), (685, 29613), (2055, 9871)]