1311723

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 2216448

約数和(自身を除く): 904725

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 443, 987, 1329, 2961, 3101, 3987, 9303, 20821, 27909, 62463, 145747, 187389, 437241, 1311723]

約数ペア:

[(1, 1311723), (3, 437241), (7, 187389), (9, 145747), (21, 62463), (47, 27909), (63, 20821), (141, 9303), (329, 3987), (423, 3101), (443, 2961), (987, 1329)]