20199995487

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^2\times {\mathrm{28723}}^1$

素因数の和:28861

約数の個数: 48

約数和(自身を含む): 34772125440

約数和(自身を除く): 14572129953

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 427, 549, 1281, 1647, 3721, 3843, 11163, 11529, 26047, 28723, 33489, 78141, 86169, 100467, 201061, 234423, 258507, 603183, 703269, 775521, 1752103, 1809549, 5256309, 5428647, 12264721, 15768927, 36794163, 47306781, 106878283, 110382489, 320634849, 331147467, 748147981, 961904547, 2244443943, 2885713641, 6733331829, 20199995487]

約数ペア:

[(1, 20199995487), (3, 6733331829), (7, 2885713641), (9, 2244443943), (21, 961904547), (27, 748147981), (61, 331147467), (63, 320634849), (183, 110382489), (189, 106878283), (427, 47306781), (549, 36794163), (1281, 15768927), (1647, 12264721), (3721, 5428647), (3843, 5256309), (11163, 1809549), (11529, 1752103), (26047, 775521), (28723, 703269), (33489, 603183), (78141, 258507), (86169, 234423), (100467, 201061)]