21582050

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:432

約数の個数: 72

約数和(自身を含む): 48854016

約数和(自身を除く): 27271966

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 49, 50, 70, 98, 115, 161, 175, 230, 245, 322, 350, 383, 490, 575, 766, 805, 1127, 1150, 1225, 1610, 1915, 2254, 2450, 2681, 3830, 4025, 5362, 5635, 8050, 8809, 9575, 11270, 13405, 17618, 18767, 19150, 26810, 28175, 37534, 44045, 56350, 61663, 67025, 88090, 93835, 123326, 134050, 187670, 220225, 308315, 431641, 440450, 469175, 616630, 863282, 938350, 1541575, 2158205, 3083150, 4316410, 10791025, 21582050]

約数ペア:

[(1, 21582050), (2, 10791025), (5, 4316410), (7, 3083150), (10, 2158205), (14, 1541575), (23, 938350), (25, 863282), (35, 616630), (46, 469175), (49, 440450), (50, 431641), (70, 308315), (98, 220225), (115, 187670), (161, 134050), (175, 123326), (230, 93835), (245, 88090), (322, 67025), (350, 61663), (383, 56350), (490, 44045), (575, 37534), (766, 28175), (805, 26810), (1127, 19150), (1150, 18767), (1225, 17618), (1610, 13405), (1915, 11270), (2254, 9575), (2450, 8809), (2681, 8050), (3830, 5635), (4025, 5362)]