21087100

素因数分解:

$2^2\times 5^2\times {\mathrm{433}}^1\times {\mathrm{487}}^1$

素因数の和:934

約数の個数: 36

約数和(自身を含む): 45958864

約数和(自身を除く): 24871764

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 433, 487, 866, 974, 1732, 1948, 2165, 2435, 4330, 4870, 8660, 9740, 10825, 12175, 21650, 24350, 43300, 48700, 210871, 421742, 843484, 1054355, 2108710, 4217420, 5271775, 10543550, 21087100]

約数ペア:

[(1, 21087100), (2, 10543550), (4, 5271775), (5, 4217420), (10, 2108710), (20, 1054355), (25, 843484), (50, 421742), (100, 210871), (433, 48700), (487, 43300), (866, 24350), (974, 21650), (1732, 12175), (1948, 10825), (2165, 9740), (2435, 8660), (4330, 4870)]