20716672

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{5581}}^1$

素因数の和:5624

約数の個数: 32

約数和(自身を含む): 42702300

約数和(自身を除く): 21985628

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 464, 928, 1856, 3712, 5581, 11162, 22324, 44648, 89296, 161849, 178592, 323698, 357184, 647396, 714368, 1294792, 2589584, 5179168, 10358336, 20716672]

約数ペア:

[(1, 20716672), (2, 10358336), (4, 5179168), (8, 2589584), (16, 1294792), (29, 714368), (32, 647396), (58, 357184), (64, 323698), (116, 178592), (128, 161849), (232, 89296), (464, 44648), (928, 22324), (1856, 11162), (3712, 5581)]