21631750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 47443968

約数和(自身を除く): 25812218

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 50, 70, 94, 125, 175, 235, 250, 263, 329, 350, 470, 526, 658, 875, 1175, 1315, 1645, 1750, 1841, 2350, 2630, 3290, 3682, 5875, 6575, 8225, 9205, 11750, 12361, 13150, 16450, 18410, 24722, 32875, 41125, 46025, 61805, 65750, 82250, 86527, 92050, 123610, 173054, 230125, 309025, 432635, 460250, 618050, 865270, 1545125, 2163175, 3090250, 4326350, 10815875, 21631750]

約数ペア:

[(1, 21631750), (2, 10815875), (5, 4326350), (7, 3090250), (10, 2163175), (14, 1545125), (25, 865270), (35, 618050), (47, 460250), (50, 432635), (70, 309025), (94, 230125), (125, 173054), (175, 123610), (235, 92050), (250, 86527), (263, 82250), (329, 65750), (350, 61805), (470, 46025), (526, 41125), (658, 32875), (875, 24722), (1175, 18410), (1315, 16450), (1645, 13150), (1750, 12361), (1841, 11750), (2350, 9205), (2630, 8225), (3290, 6575), (3682, 5875)]