20786486

素因数分解:

$2^1\times 7^3\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 36782400

約数和(自身を除く): 15995914

約数列:

[1, 2, 7, 14, 49, 98, 157, 193, 314, 343, 386, 686, 1099, 1351, 2198, 2702, 7693, 9457, 15386, 18914, 30301, 53851, 60602, 66199, 107702, 132398, 212107, 424214, 1484749, 2969498, 10393243, 20786486]

約数ペア:

[(1, 20786486), (2, 10393243), (7, 2969498), (14, 1484749), (49, 424214), (98, 212107), (157, 132398), (193, 107702), (314, 66199), (343, 60602), (386, 53851), (686, 30301), (1099, 18914), (1351, 15386), (2198, 9457), (2702, 7693)]