20845006

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2161}}^1$

素因数の和:2236

約数の個数: 32

約数和(自身を含む): 39227328

約数和(自身を除く): 18382322

約数列:

[1, 2, 7, 13, 14, 26, 53, 91, 106, 182, 371, 689, 742, 1378, 2161, 4322, 4823, 9646, 15127, 28093, 30254, 56186, 114533, 196651, 229066, 393302, 801731, 1488929, 1603462, 2977858, 10422503, 20845006]

約数ペア:

[(1, 20845006), (2, 10422503), (7, 2977858), (13, 1603462), (14, 1488929), (26, 801731), (53, 393302), (91, 229066), (106, 196651), (182, 114533), (371, 56186), (689, 30254), (742, 28093), (1378, 15127), (2161, 9646), (4322, 4823)]