21120470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43103}}^1$

素因数の和:43124

約数の個数: 24

約数和(自身を含む): 44224704

約数和(自身を除く): 23104234

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43103, 86206, 215515, 301721, 431030, 603442, 1508605, 2112047, 3017210, 4224094, 10560235, 21120470]

約数ペア:

[(1, 21120470), (2, 10560235), (5, 4224094), (7, 3017210), (10, 2112047), (14, 1508605), (35, 603442), (49, 431030), (70, 301721), (98, 215515), (245, 86206), (490, 43103)]