18690111

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2659}}^1$

素因数の和:2747

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 11187009

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2659, 7029, 7977, 23931, 29249, 87747, 188789, 263241, 566367, 1699101, 2076679, 6230037, 18690111]

約数ペア:

[(1, 18690111), (3, 6230037), (9, 2076679), (11, 1699101), (33, 566367), (71, 263241), (99, 188789), (213, 87747), (639, 29249), (781, 23931), (2343, 7977), (2659, 7029)]