21028953

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{3049}}^1$

素因数の和:3093

約数の個数: 24

約数和(自身を含む): 32452000

約数和(自身を除く): 11423047

約数列:

[1, 3, 11, 19, 33, 57, 121, 209, 363, 627, 2299, 3049, 6897, 9147, 33539, 57931, 100617, 173793, 368929, 637241, 1106787, 1911723, 7009651, 21028953]

約数ペア:

[(1, 21028953), (3, 7009651), (11, 1911723), (19, 1106787), (33, 637241), (57, 368929), (121, 173793), (209, 100617), (363, 57931), (627, 33539), (2299, 9147), (3049, 6897)]