20556970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41953}}^1$

素因数の和:41974

約数の個数: 24

約数和(自身を含む): 43044804

約数和(自身を除く): 22487834

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41953, 83906, 209765, 293671, 419530, 587342, 1468355, 2055697, 2936710, 4111394, 10278485, 20556970]

約数ペア:

[(1, 20556970), (2, 10278485), (5, 4111394), (7, 2936710), (10, 2055697), (14, 1468355), (35, 587342), (49, 419530), (70, 293671), (98, 209765), (245, 83906), (490, 41953)]