20169944081

素因数分解:

$7^1\times {\mathrm{43}}^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 24449685120

約数和(自身を除く): 4279741039

約数列:

[1, 7, 43, 59, 61, 301, 413, 427, 433, 1849, 2537, 2623, 3031, 3599, 12943, 17759, 18361, 18619, 25193, 25547, 26413, 109091, 112789, 130333, 154757, 178829, 184891, 763637, 789523, 800617, 1083299, 1098521, 1135759, 1558367, 5604319, 6654551, 7689647, 7950313, 10908569, 46581857, 47236403, 48837637, 67009781, 330654821, 341863459, 469068467, 2881420583, 20169944081]

約数ペア:

[(1, 20169944081), (7, 2881420583), (43, 469068467), (59, 341863459), (61, 330654821), (301, 67009781), (413, 48837637), (427, 47236403), (433, 46581857), (1849, 10908569), (2537, 7950313), (2623, 7689647), (3031, 6654551), (3599, 5604319), (12943, 1558367), (17759, 1135759), (18361, 1098521), (18619, 1083299), (25193, 800617), (25547, 789523), (26413, 763637), (109091, 184891), (112789, 178829), (130333, 154757)]