16991660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{121369}}^1$

素因数の和:121385

約数の個数: 24

約数和(自身を含む): 40780320

約数和(自身を除く): 23788660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 121369, 242738, 485476, 606845, 849583, 1213690, 1699166, 2427380, 3398332, 4247915, 8495830, 16991660]

約数ペア:

[(1, 16991660), (2, 8495830), (4, 4247915), (5, 3398332), (7, 2427380), (10, 1699166), (14, 1213690), (20, 849583), (28, 606845), (35, 485476), (70, 242738), (140, 121369)]