31457721

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 46080000

約数和(自身を除く): 14622279

約数列:

[1, 3, 23, 29, 69, 79, 87, 199, 237, 597, 667, 1817, 2001, 2291, 4577, 5451, 5771, 6873, 13731, 15721, 17313, 47163, 52693, 132733, 158079, 361583, 398199, 455909, 1084749, 1367727, 10485907, 31457721]

約数ペア:

[(1, 31457721), (3, 10485907), (23, 1367727), (29, 1084749), (69, 455909), (79, 398199), (87, 361583), (199, 158079), (237, 132733), (597, 52693), (667, 47163), (1817, 17313), (2001, 15721), (2291, 13731), (4577, 6873), (5451, 5771)]