21991861131

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 31511808000

約数和(自身を除く): 9519946869

約数列:

[1, 3, 29, 59, 79, 87, 177, 193, 237, 281, 579, 843, 1711, 2291, 4661, 5133, 5597, 6873, 8149, 11387, 13983, 15247, 16579, 16791, 22199, 24447, 34161, 45741, 49737, 54233, 66597, 135169, 162699, 330223, 405507, 442163, 480791, 643771, 899573, 990669, 1309741, 1326489, 1442373, 1572757, 1931313, 2698719, 3199747, 3929223, 4284407, 4718271, 9599241, 12853221, 26087617, 37982489, 78262851, 92792663, 113947467, 124247803, 252780013, 278377989, 372743409, 758340039, 7330620377, 21991861131]

約数ペア:

[(1, 21991861131), (3, 7330620377), (29, 758340039), (59, 372743409), (79, 278377989), (87, 252780013), (177, 124247803), (193, 113947467), (237, 92792663), (281, 78262851), (579, 37982489), (843, 26087617), (1711, 12853221), (2291, 9599241), (4661, 4718271), (5133, 4284407), (5597, 3929223), (6873, 3199747), (8149, 2698719), (11387, 1931313), (13983, 1572757), (15247, 1442373), (16579, 1326489), (16791, 1309741), (22199, 990669), (24447, 899573), (34161, 643771), (45741, 480791), (49737, 442163), (54233, 405507), (66597, 330223), (135169, 162699)]