20161953

素因数分解:

$3^8\times 7^1\times {\mathrm{439}}^1$

素因数の和:470

約数の個数: 36

約数和(自身を含む): 34640320

約数和(自身を除く): 14478367

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 439, 567, 729, 1317, 1701, 2187, 3073, 3951, 5103, 6561, 9219, 11853, 15309, 27657, 35559, 45927, 82971, 106677, 248913, 320031, 746739, 960093, 2240217, 2880279, 6720651, 20161953]

約数ペア:

[(1, 20161953), (3, 6720651), (7, 2880279), (9, 2240217), (21, 960093), (27, 746739), (63, 320031), (81, 248913), (189, 106677), (243, 82971), (439, 45927), (567, 35559), (729, 27657), (1317, 15309), (1701, 11853), (2187, 9219), (3073, 6561), (3951, 5103)]