20164963

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 26199936

約数和(自身を除く): 6034973

約数列:

[1, 7, 13, 37, 53, 91, 113, 259, 371, 481, 689, 791, 1469, 1961, 3367, 4181, 4823, 5989, 10283, 13727, 25493, 29267, 41923, 54353, 77857, 178451, 221593, 380471, 544999, 1551151, 2880709, 20164963]

約数ペア:

[(1, 20164963), (7, 2880709), (13, 1551151), (37, 544999), (53, 380471), (91, 221593), (113, 178451), (259, 77857), (371, 54353), (481, 41923), (689, 29267), (791, 25493), (1469, 13727), (1961, 10283), (3367, 5989), (4181, 4823)]