1405369

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 24

約数和(自身を含む): 1805760

約数和(自身を除く): 400391

約数列:

[1, 7, 23, 29, 43, 49, 161, 203, 301, 667, 989, 1127, 1247, 1421, 2107, 4669, 6923, 8729, 28681, 32683, 48461, 61103, 200767, 1405369]

約数ペア:

[(1, 1405369), (7, 200767), (23, 61103), (29, 48461), (43, 32683), (49, 28681), (161, 8729), (203, 6923), (301, 4669), (667, 2107), (989, 1421), (1127, 1247)]