20128173

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 30105600

約数和(自身を除く): 9977427

約数列:

[1, 3, 13, 39, 47, 79, 139, 141, 237, 417, 611, 1027, 1807, 1833, 3081, 3713, 5421, 6533, 10981, 11139, 19599, 32943, 48269, 84929, 142753, 144807, 254787, 428259, 516107, 1548321, 6709391, 20128173]

約数ペア:

[(1, 20128173), (3, 6709391), (13, 1548321), (39, 516107), (47, 428259), (79, 254787), (139, 144807), (141, 142753), (237, 84929), (417, 48269), (611, 32943), (1027, 19599), (1807, 11139), (1833, 10981), (3081, 6533), (3713, 5421)]