21693668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{719}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 40118400

約数和(自身を除く): 18424732

約数列:

[1, 2, 4, 19, 38, 76, 397, 719, 794, 1438, 1588, 2876, 7543, 13661, 15086, 27322, 30172, 54644, 285443, 570886, 1141772, 5423417, 10846834, 21693668]

約数ペア:

[(1, 21693668), (2, 10846834), (4, 5423417), (19, 1141772), (38, 570886), (76, 285443), (397, 54644), (719, 30172), (794, 27322), (1438, 15086), (1588, 13661), (2876, 7543)]