21392679

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{8419}}^1$

素因数の和:8451

約数の個数: 24

約数和(自身を含む): 35835520

約数和(自身を除く): 14442841

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 8419, 25257, 58933, 92609, 176799, 277827, 648263, 1018699, 1944789, 3056097, 7130893, 21392679]

約数ペア:

[(1, 21392679), (3, 7130893), (7, 3056097), (11, 1944789), (21, 1018699), (33, 648263), (77, 277827), (121, 176799), (231, 92609), (363, 58933), (847, 25257), (2541, 8419)]