20823859

素因数分解:

$7^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:175

約数の個数: 24

約数和(自身を含む): 25528608

約数和(自身を除く): 4704749

約数列:

[1, 7, 37, 41, 53, 259, 287, 371, 1369, 1517, 1961, 2173, 9583, 10619, 13727, 15211, 56129, 72557, 80401, 392903, 507899, 562807, 2974837, 20823859]

約数ペア:

[(1, 20823859), (7, 2974837), (37, 562807), (41, 507899), (53, 392903), (259, 80401), (287, 72557), (371, 56129), (1369, 15211), (1517, 13727), (1961, 10619), (2173, 9583)]