21851409

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{1871}}^1$

素因数の和:2120

約数の個数: 16

約数和(自身を含む): 31000320

約数和(自身を除く): 9148911

約数列:

[1, 3, 17, 51, 229, 687, 1871, 3893, 5613, 11679, 31807, 95421, 428459, 1285377, 7283803, 21851409]

約数ペア:

[(1, 21851409), (3, 7283803), (17, 1285377), (51, 428459), (229, 95421), (687, 31807), (1871, 11679), (3893, 5613)]