21697550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1319}}^1$

素因数の和:1385

約数の個数: 48

約数和(自身を含む): 47139840

約数和(自身を除く): 25442290

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 50, 70, 94, 175, 235, 329, 350, 470, 658, 1175, 1319, 1645, 2350, 2638, 3290, 6595, 8225, 9233, 13190, 16450, 18466, 32975, 46165, 61993, 65950, 92330, 123986, 230825, 309965, 433951, 461650, 619930, 867902, 1549825, 2169755, 3099650, 4339510, 10848775, 21697550]

約数ペア:

[(1, 21697550), (2, 10848775), (5, 4339510), (7, 3099650), (10, 2169755), (14, 1549825), (25, 867902), (35, 619930), (47, 461650), (50, 433951), (70, 309965), (94, 230825), (175, 123986), (235, 92330), (329, 65950), (350, 61993), (470, 46165), (658, 32975), (1175, 18466), (1319, 16450), (1645, 13190), (2350, 9233), (2638, 8225), (3290, 6595)]