20687535248

素因数分解:

$2^4\times {\mathrm{3331}}^1\times {\mathrm{388163}}^1$

素因数の和:391502

約数の個数: 20

約数和(自身を含む): 40094235888

約数和(自身を除く): 19406700640

約数列:

[1, 2, 4, 8, 16, 3331, 6662, 13324, 26648, 53296, 388163, 776326, 1552652, 3105304, 6210608, 1292970953, 2585941906, 5171883812, 10343767624, 20687535248]

約数ペア:

[(1, 20687535248), (2, 10343767624), (4, 5171883812), (8, 2585941906), (16, 1292970953), (3331, 6210608), (6662, 3105304), (13324, 1552652), (26648, 776326), (53296, 388163)]