20505758

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{367}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 38083584

約数和(自身を除く): 17577826

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 307, 367, 614, 734, 2149, 2569, 3991, 4298, 4771, 5138, 7982, 9542, 27937, 33397, 55874, 66794, 112669, 225338, 788683, 1464697, 1577366, 2929394, 10252879, 20505758]

約数ペア:

[(1, 20505758), (2, 10252879), (7, 2929394), (13, 1577366), (14, 1464697), (26, 788683), (91, 225338), (182, 112669), (307, 66794), (367, 55874), (614, 33397), (734, 27937), (2149, 9542), (2569, 7982), (3991, 5138), (4298, 4771)]