20168841

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12473}}^1$

素因数の和:12501

約数の個数: 24

約数和(自身を含む): 34128864

約数和(自身を除く): 13960023

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12473, 37419, 87311, 137203, 261933, 411609, 611177, 960421, 1833531, 2881263, 6722947, 20168841]

約数ペア:

[(1, 20168841), (3, 6722947), (7, 2881263), (11, 1833531), (21, 960421), (33, 611177), (49, 411609), (77, 261933), (147, 137203), (231, 87311), (539, 37419), (1617, 12473)]