20694807

素因数分解:

$3^2\times 7^2\times {\mathrm{167}}^1\times {\mathrm{281}}^1$

素因数の和:468

約数の個数: 36

約数和(自身を含む): 35105616

約数和(自身を除く): 14410809

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 167, 281, 441, 501, 843, 1169, 1503, 1967, 2529, 3507, 5901, 8183, 10521, 13769, 17703, 24549, 41307, 46927, 73647, 123921, 140781, 328489, 422343, 985467, 2299423, 2956401, 6898269, 20694807]

約数ペア:

[(1, 20694807), (3, 6898269), (7, 2956401), (9, 2299423), (21, 985467), (49, 422343), (63, 328489), (147, 140781), (167, 123921), (281, 73647), (441, 46927), (501, 41307), (843, 24549), (1169, 17703), (1503, 13769), (1967, 10521), (2529, 8183), (3507, 5901)]