20938045401

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1217399}}^1$

素因数の和:1217435

約数の個数: 48

約数和(自身を含む): 38859408000

約数和(自身を除く): 17921362599

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 189, 273, 351, 441, 637, 819, 1323, 1911, 2457, 5733, 17199, 1217399, 3652197, 8521793, 10956591, 15826187, 25565379, 32869773, 47478561, 59652551, 76696137, 110783309, 142435683, 178957653, 230088411, 332349927, 427307049, 536872959, 775483163, 997049781, 1610618877, 2326449489, 2991149343, 6979348467, 20938045401]

約数ペア:

[(1, 20938045401), (3, 6979348467), (7, 2991149343), (9, 2326449489), (13, 1610618877), (21, 997049781), (27, 775483163), (39, 536872959), (49, 427307049), (63, 332349927), (91, 230088411), (117, 178957653), (147, 142435683), (189, 110783309), (273, 76696137), (351, 59652551), (441, 47478561), (637, 32869773), (819, 25565379), (1323, 15826187), (1911, 10956591), (2457, 8521793), (5733, 3652197), (17199, 1217399)]