20154339

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{4079}}^1$

素因数の和:4152

約数の個数: 20

約数和(自身を含む): 30608160

約数和(自身を除く): 10453821

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4079, 4941, 12237, 36711, 110133, 248819, 330399, 746457, 2239371, 6718113, 20154339]

約数ペア:

[(1, 20154339), (3, 6718113), (9, 2239371), (27, 746457), (61, 330399), (81, 248819), (183, 110133), (549, 36711), (1647, 12237), (4079, 4941)]