81841857

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 117089280

約数和(自身を除く): 35247423

約数列:

[1, 3, 29, 43, 87, 129, 131, 167, 393, 501, 1247, 3741, 3799, 4843, 5633, 7181, 11397, 14529, 16899, 21543, 21877, 65631, 163357, 208249, 490071, 624747, 634433, 940711, 1903299, 2822133, 27280619, 81841857]

約数ペア:

[(1, 81841857), (3, 27280619), (29, 2822133), (43, 1903299), (87, 940711), (129, 634433), (131, 624747), (167, 490071), (393, 208249), (501, 163357), (1247, 65631), (3741, 21877), (3799, 21543), (4843, 16899), (5633, 14529), (7181, 11397)]