81678051

素因数分解:

$3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1583}}^1$

素因数の和:1622

約数の個数: 60

約数和(自身を含む): 152947872

約数和(自身を除く): 71269821

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 81, 91, 117, 147, 189, 273, 351, 441, 567, 637, 819, 1053, 1323, 1583, 1911, 2457, 3969, 4749, 5733, 7371, 11081, 14247, 17199, 20579, 33243, 42741, 51597, 61737, 77567, 99729, 128223, 144053, 185211, 232701, 299187, 432159, 555633, 698103, 897561, 1008371, 1296477, 1666899, 2094309, 3025113, 3889431, 6282927, 9075339, 11668293, 27226017, 81678051]

約数ペア:

[(1, 81678051), (3, 27226017), (7, 11668293), (9, 9075339), (13, 6282927), (21, 3889431), (27, 3025113), (39, 2094309), (49, 1666899), (63, 1296477), (81, 1008371), (91, 897561), (117, 698103), (147, 555633), (189, 432159), (273, 299187), (351, 232701), (441, 185211), (567, 144053), (637, 128223), (819, 99729), (1053, 77567), (1323, 61737), (1583, 51597), (1911, 42741), (2457, 33243), (3969, 20579), (4749, 17199), (5733, 14247), (7371, 11081)]