19775756

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 46922400

約数和(自身を除く): 27146644

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 121, 143, 154, 182, 242, 286, 308, 364, 449, 484, 572, 847, 898, 1001, 1573, 1694, 1796, 2002, 3143, 3146, 3388, 4004, 4939, 5837, 6286, 6292, 9878, 11011, 11674, 12572, 19756, 22022, 23348, 34573, 40859, 44044, 54329, 64207, 69146, 81718, 108658, 128414, 138292, 163436, 217316, 256828, 380303, 449449, 706277, 760606, 898898, 1412554, 1521212, 1797796, 2825108, 4943939, 9887878, 19775756]

約数ペア:

[(1, 19775756), (2, 9887878), (4, 4943939), (7, 2825108), (11, 1797796), (13, 1521212), (14, 1412554), (22, 898898), (26, 760606), (28, 706277), (44, 449449), (52, 380303), (77, 256828), (91, 217316), (121, 163436), (143, 138292), (154, 128414), (182, 108658), (242, 81718), (286, 69146), (308, 64207), (364, 54329), (449, 44044), (484, 40859), (572, 34573), (847, 23348), (898, 22022), (1001, 19756), (1573, 12572), (1694, 11674), (1796, 11011), (2002, 9878), (3143, 6292), (3146, 6286), (3388, 5837), (4004, 4939)]