21885111

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1181}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 33190560

約数和(自身を除く): 11305449

約数列:

[1, 3, 9, 29, 71, 87, 213, 261, 639, 1181, 2059, 3543, 6177, 10629, 18531, 34249, 83851, 102747, 251553, 308241, 754659, 2431679, 7295037, 21885111]

約数ペア:

[(1, 21885111), (3, 7295037), (9, 2431679), (29, 754659), (71, 308241), (87, 251553), (213, 102747), (261, 83851), (639, 34249), (1181, 18531), (2059, 10629), (3543, 6177)]