21487053

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5653}}^1$

素因数の和:5844

約数の個数: 16

約数和(自身を含む): 32928896

約数和(自身を除く): 11441843

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5653, 16959, 39571, 118713, 1023193, 3069579, 7162351, 21487053]

約数ペア:

[(1, 21487053), (3, 7162351), (7, 3069579), (21, 1023193), (181, 118713), (543, 39571), (1267, 16959), (3801, 5653)]