19643860

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2333}}^1$

素因数の和:2763

約数の個数: 24

約数和(自身を含む): 41367816

約数和(自身を除く): 21723956

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 2333, 4210, 4666, 8420, 9332, 11665, 23330, 46660, 982193, 1964386, 3928772, 4910965, 9821930, 19643860]

約数ペア:

[(1, 19643860), (2, 9821930), (4, 4910965), (5, 3928772), (10, 1964386), (20, 982193), (421, 46660), (842, 23330), (1684, 11665), (2105, 9332), (2333, 8420), (4210, 4666)]