21433490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2087}}^1$

素因数の和:2186

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 20660590

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2054, 2087, 4174, 5135, 10270, 10435, 20870, 27131, 54262, 135655, 164873, 271310, 329746, 824365, 1648730, 2143349, 4286698, 10716745, 21433490]

約数ペア:

[(1, 21433490), (2, 10716745), (5, 4286698), (10, 2143349), (13, 1648730), (26, 824365), (65, 329746), (79, 271310), (130, 164873), (158, 135655), (395, 54262), (790, 27131), (1027, 20870), (2054, 10435), (2087, 10270), (4174, 5135)]