20659401

素因数分解:

$3^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 35193600

約数和(自身を除く): 14534199

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 281, 389, 843, 1167, 1967, 2529, 2723, 3501, 5901, 7587, 8169, 10503, 17703, 24507, 53109, 73521, 109309, 327927, 765163, 983781, 2295489, 2951343, 6886467, 20659401]

約数ペア:

[(1, 20659401), (3, 6886467), (7, 2951343), (9, 2295489), (21, 983781), (27, 765163), (63, 327927), (189, 109309), (281, 73521), (389, 53109), (843, 24507), (1167, 17703), (1967, 10503), (2529, 8169), (2723, 7587), (3501, 5901)]