21142860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352381}}^1$

素因数の和:352393

約数の個数: 24

約数和(自身を含む): 59200176

約数和(自身を除く): 38057316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352381, 704762, 1057143, 1409524, 1761905, 2114286, 3523810, 4228572, 5285715, 7047620, 10571430, 21142860]

約数ペア:

[(1, 21142860), (2, 10571430), (3, 7047620), (4, 5285715), (5, 4228572), (6, 3523810), (10, 2114286), (12, 1761905), (15, 1409524), (20, 1057143), (30, 704762), (60, 352381)]