51261405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1321}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 88838400

約数和(自身を除く): 37576995

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 199, 597, 995, 1321, 2587, 2985, 3963, 6605, 7761, 12935, 17173, 19815, 38805, 51519, 85865, 257595, 262879, 788637, 1314395, 3417427, 3943185, 10252281, 17087135, 51261405]

約数ペア:

[(1, 51261405), (3, 17087135), (5, 10252281), (13, 3943185), (15, 3417427), (39, 1314395), (65, 788637), (195, 262879), (199, 257595), (597, 85865), (995, 51519), (1321, 38805), (2587, 19815), (2985, 17173), (3963, 12935), (6605, 7761)]