21104540

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{3041}}^1$

素因数の和:3397

約数の個数: 24

約数和(自身を含む): 44461872

約数和(自身を除く): 23357332

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3041, 3470, 6082, 6940, 12164, 15205, 30410, 60820, 1055227, 2110454, 4220908, 5276135, 10552270, 21104540]

約数ペア:

[(1, 21104540), (2, 10552270), (4, 5276135), (5, 4220908), (10, 2110454), (20, 1055227), (347, 60820), (694, 30410), (1388, 15205), (1735, 12164), (3041, 6940), (3470, 6082)]