11890389

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1721}}^1$

素因数の和:1785

約数の個数: 24

約数和(自身を含む): 18845568

約数和(自身を除く): 6955179

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 1721, 2303, 5163, 6909, 12047, 36141, 80887, 84329, 242661, 252987, 566209, 1698627, 3963463, 11890389]

約数ペア:

[(1, 11890389), (3, 3963463), (7, 1698627), (21, 566209), (47, 252987), (49, 242661), (141, 84329), (147, 80887), (329, 36141), (987, 12047), (1721, 6909), (2303, 5163)]