16906491

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2657}}^1$

素因数の和:2771

約数の個数: 24

約数和(自身を含む): 28196064

約数和(自身を除く): 11289573

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 2657, 6363, 7971, 18599, 23913, 55797, 167391, 268357, 805071, 1878499, 2415213, 5635497, 16906491]

約数ペア:

[(1, 16906491), (3, 5635497), (7, 2415213), (9, 1878499), (21, 805071), (63, 268357), (101, 167391), (303, 55797), (707, 23913), (909, 18599), (2121, 7971), (2657, 6363)]