198370081

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2857}}^1$

素因数の和:2993

約数の個数: 24

約数和(自身を含む): 250875240

約数和(自身を除く): 52505159

約数列:

[1, 7, 13, 49, 91, 109, 637, 763, 1417, 2857, 5341, 9919, 19999, 37141, 69433, 139993, 259987, 311413, 1819909, 2179891, 4048369, 15259237, 28338583, 198370081]

約数ペア:

[(1, 198370081), (7, 28338583), (13, 15259237), (49, 4048369), (91, 2179891), (109, 1819909), (637, 311413), (763, 259987), (1417, 139993), (2857, 69433), (5341, 37141), (9919, 19999)]