1391103

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 2336256

約数和(自身を除く): 945153

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 311, 497, 639, 933, 1491, 2177, 2799, 4473, 6531, 19593, 22081, 66243, 154567, 198729, 463701, 1391103]

約数ペア:

[(1, 1391103), (3, 463701), (7, 198729), (9, 154567), (21, 66243), (63, 22081), (71, 19593), (213, 6531), (311, 4473), (497, 2799), (639, 2177), (933, 1491)]