81956469

素因数分解:

$3^1\times 7^2\times {\mathrm{359}}^1\times {\mathrm{1553}}^1$

素因数の和:1929

約数の個数: 24

約数和(自身を含む): 127552320

約数和(自身を除く): 45595851

約数列:

[1, 3, 7, 21, 49, 147, 359, 1077, 1553, 2513, 4659, 7539, 10871, 17591, 32613, 52773, 76097, 228291, 557527, 1672581, 3902689, 11708067, 27318823, 81956469]

約数ペア:

[(1, 81956469), (3, 27318823), (7, 11708067), (21, 3902689), (49, 1672581), (147, 557527), (359, 228291), (1077, 76097), (1553, 52773), (2513, 32613), (4659, 17591), (7539, 10871)]