19728156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:343

約数の個数: 96

約数和(自身を含む): 56770560

約数和(自身を除く): 37042404

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 47, 57, 76, 84, 94, 114, 133, 141, 188, 228, 263, 266, 282, 329, 399, 526, 532, 564, 658, 789, 798, 893, 987, 1052, 1316, 1578, 1596, 1786, 1841, 1974, 2679, 3156, 3572, 3682, 3948, 4997, 5358, 5523, 6251, 7364, 9994, 10716, 11046, 12361, 12502, 14991, 18753, 19988, 22092, 24722, 25004, 29982, 34979, 37083, 37506, 49444, 59964, 69958, 74166, 75012, 86527, 104937, 139916, 148332, 173054, 209874, 234859, 259581, 346108, 419748, 469718, 519162, 704577, 939436, 1038324, 1409154, 1644013, 2818308, 3288026, 4932039, 6576052, 9864078, 19728156]

約数ペア:

[(1, 19728156), (2, 9864078), (3, 6576052), (4, 4932039), (6, 3288026), (7, 2818308), (12, 1644013), (14, 1409154), (19, 1038324), (21, 939436), (28, 704577), (38, 519162), (42, 469718), (47, 419748), (57, 346108), (76, 259581), (84, 234859), (94, 209874), (114, 173054), (133, 148332), (141, 139916), (188, 104937), (228, 86527), (263, 75012), (266, 74166), (282, 69958), (329, 59964), (399, 49444), (526, 37506), (532, 37083), (564, 34979), (658, 29982), (789, 25004), (798, 24722), (893, 22092), (987, 19988), (1052, 18753), (1316, 14991), (1578, 12502), (1596, 12361), (1786, 11046), (1841, 10716), (1974, 9994), (2679, 7364), (3156, 6251), (3572, 5523), (3682, 5358), (3948, 4997)]