1276891

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:151

約数の個数: 24

約数和(自身を含む): 1707264

約数和(自身を除く): 430373

約数列:

[1, 7, 11, 23, 49, 77, 103, 161, 253, 539, 721, 1127, 1133, 1771, 2369, 5047, 7931, 12397, 16583, 26059, 55517, 116081, 182413, 1276891]

約数ペア:

[(1, 1276891), (7, 182413), (11, 116081), (23, 55517), (49, 26059), (77, 16583), (103, 12397), (161, 7931), (253, 5047), (539, 2369), (721, 1771), (1127, 1133)]