20952351

素因数分解:

$3^4\times 7^2\times {\mathrm{5279}}^1$

素因数の和:5305

約数の個数: 30

約数和(自身を含む): 36416160

約数和(自身を除く): 15463809

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5279, 15837, 36953, 47511, 110859, 142533, 258671, 332577, 427599, 776013, 997731, 2328039, 2993193, 6984117, 20952351]

約数ペア:

[(1, 20952351), (3, 6984117), (7, 2993193), (9, 2328039), (21, 997731), (27, 776013), (49, 427599), (63, 332577), (81, 258671), (147, 142533), (189, 110859), (441, 47511), (567, 36953), (1323, 15837), (3969, 5279)]