20843589

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 12057531

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 741, 897, 1223, 1311, 3669, 5681, 15899, 17043, 23237, 28129, 47697, 69711, 84387, 302081, 365677, 534451, 906243, 1097031, 1603353, 6947863, 20843589]

約数ペア:

[(1, 20843589), (3, 6947863), (13, 1603353), (19, 1097031), (23, 906243), (39, 534451), (57, 365677), (69, 302081), (247, 84387), (299, 69711), (437, 47697), (741, 28129), (897, 23237), (1223, 17043), (1311, 15899), (3669, 5681)]