19645778889

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{7993}}^1$

素因数の和:8119

約数の個数: 72

約数和(自身を含む): 32563750856

約数和(自身を除く): 12917971967

約数列:

[1, 3, 9, 11, 33, 37, 61, 99, 111, 121, 183, 333, 363, 407, 549, 671, 1089, 1221, 2013, 2257, 3663, 4477, 6039, 6771, 7381, 7993, 13431, 20313, 22143, 23979, 24827, 40293, 66429, 71937, 74481, 87923, 223443, 263769, 273097, 295741, 487573, 791307, 819291, 887223, 967153, 1462719, 2457873, 2661669, 2901459, 3253151, 4388157, 5363303, 8704377, 9759453, 16089909, 18040201, 29278359, 35784661, 48269727, 54120603, 58996333, 107353983, 162361809, 176988999, 198442211, 322061949, 530966997, 595326633, 1785979899, 2182864321, 6548592963, 19645778889]

約数ペア:

[(1, 19645778889), (3, 6548592963), (9, 2182864321), (11, 1785979899), (33, 595326633), (37, 530966997), (61, 322061949), (99, 198442211), (111, 176988999), (121, 162361809), (183, 107353983), (333, 58996333), (363, 54120603), (407, 48269727), (549, 35784661), (671, 29278359), (1089, 18040201), (1221, 16089909), (2013, 9759453), (2257, 8704377), (3663, 5363303), (4477, 4388157), (6039, 3253151), (6771, 2901459), (7381, 2661669), (7993, 2457873), (13431, 1462719), (20313, 967153), (22143, 887223), (23979, 819291), (24827, 791307), (40293, 487573), (66429, 295741), (71937, 273097), (74481, 263769), (87923, 223443)]