12942321

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{5179}}^1$

素因数の和:5213

約数の個数: 24

約数和(自身を含む): 21258720

約数和(自身を除く): 8316399

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 5179, 15537, 36253, 88043, 108759, 253771, 264129, 616301, 761313, 1848903, 4314107, 12942321]

約数ペア:

[(1, 12942321), (3, 4314107), (7, 1848903), (17, 761313), (21, 616301), (49, 264129), (51, 253771), (119, 108759), (147, 88043), (357, 36253), (833, 15537), (2499, 5179)]