21283779

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{3449}}^1$

素因数の和:3491

約数の個数: 24

約数和(自身を含む): 33037200

約数和(自身を除く): 11753421

約数列:

[1, 3, 11, 17, 33, 51, 121, 187, 363, 561, 2057, 3449, 6171, 10347, 37939, 58633, 113817, 175899, 417329, 644963, 1251987, 1934889, 7094593, 21283779]

約数ペア:

[(1, 21283779), (3, 7094593), (11, 1934889), (17, 1251987), (33, 644963), (51, 417329), (121, 175899), (187, 113817), (363, 58633), (561, 37939), (2057, 10347), (3449, 6171)]