21071470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43003}}^1$

素因数の和:43024

約数の個数: 24

約数和(自身を含む): 44122104

約数和(自身を除く): 23050634

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43003, 86006, 215015, 301021, 430030, 602042, 1505105, 2107147, 3010210, 4214294, 10535735, 21071470]

約数ペア:

[(1, 21071470), (2, 10535735), (5, 4214294), (7, 3010210), (10, 2107147), (14, 1505105), (35, 602042), (49, 430030), (70, 301021), (98, 215015), (245, 86006), (490, 43003)]