20977576

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{337}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 40884480

約数和(自身を除く): 19906904

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 251, 337, 502, 674, 1004, 1348, 2008, 2696, 7781, 10447, 15562, 20894, 31124, 41788, 62248, 83576, 84587, 169174, 338348, 676696, 2622197, 5244394, 10488788, 20977576]

約数ペア:

[(1, 20977576), (2, 10488788), (4, 5244394), (8, 2622197), (31, 676696), (62, 338348), (124, 169174), (248, 84587), (251, 83576), (337, 62248), (502, 41788), (674, 31124), (1004, 20894), (1348, 15562), (2008, 10447), (2696, 7781)]