257638498

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1621}}^1\times {\mathrm{6113}}^1$

素因数の和:7749

約数の個数: 16

約数和(自身を含む): 416510136

約数和(自身を除く): 158871638

約数列:

[1, 2, 13, 26, 1621, 3242, 6113, 12226, 21073, 42146, 79469, 158938, 9909173, 19818346, 128819249, 257638498]

約数ペア:

[(1, 257638498), (2, 128819249), (13, 19818346), (26, 9909173), (1621, 158938), (3242, 79469), (6113, 42146), (12226, 21073)]