21940386

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{3389}}^1$

素因数の和:3490

約数の個数: 32

約数和(自身を含む): 47839680

約数和(自身を除く): 25899294

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 83, 166, 249, 498, 1079, 2158, 3237, 3389, 6474, 6778, 10167, 20334, 44057, 88114, 132171, 264342, 281287, 562574, 843861, 1687722, 3656731, 7313462, 10970193, 21940386]

約数ペア:

[(1, 21940386), (2, 10970193), (3, 7313462), (6, 3656731), (13, 1687722), (26, 843861), (39, 562574), (78, 281287), (83, 264342), (166, 132171), (249, 88114), (498, 44057), (1079, 20334), (2158, 10167), (3237, 6778), (3389, 6474)]