1289203209

素因数分解:

$3^5\times 7^1\times {\mathrm{757909}}^1$

素因数の和:757931

約数の個数: 24

約数和(自身を含む): 2207033920

約数和(自身を除く): 917830711

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 757909, 2273727, 5305363, 6821181, 15916089, 20463543, 47748267, 61390629, 143244801, 184171887, 429734403, 1289203209]

約数ペア:

[(1, 1289203209), (3, 429734403), (7, 184171887), (9, 143244801), (21, 61390629), (27, 47748267), (63, 20463543), (81, 15916089), (189, 6821181), (243, 5305363), (567, 2273727), (1701, 757909)]