405346977

素因数分解:

$3^3\times 7^1\times {\mathrm{1381}}^1\times {\mathrm{1553}}^1$

素因数の和:2950

約数の個数: 32

約数和(自身を含む): 687240960

約数和(自身を除く): 281893983

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1381, 1553, 4143, 4659, 9667, 10871, 12429, 13977, 29001, 32613, 37287, 41931, 87003, 97839, 261009, 293517, 2144693, 6434079, 15012851, 19302237, 45038553, 57906711, 135115659, 405346977]

約数ペア:

[(1, 405346977), (3, 135115659), (7, 57906711), (9, 45038553), (21, 19302237), (27, 15012851), (63, 6434079), (189, 2144693), (1381, 293517), (1553, 261009), (4143, 97839), (4659, 87003), (9667, 41931), (10871, 37287), (12429, 32613), (13977, 29001)]