20863544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2417}}^1$

素因数の和:2519

約数の個数: 32

約数和(自身を含む): 42653520

約数和(自身を除く): 21789976

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 332, 664, 1079, 2158, 2417, 4316, 4834, 8632, 9668, 19336, 31421, 62842, 125684, 200611, 251368, 401222, 802444, 1604888, 2607943, 5215886, 10431772, 20863544]

約数ペア:

[(1, 20863544), (2, 10431772), (4, 5215886), (8, 2607943), (13, 1604888), (26, 802444), (52, 401222), (83, 251368), (104, 200611), (166, 125684), (332, 62842), (664, 31421), (1079, 19336), (2158, 9668), (2417, 8632), (4316, 4834)]