21167153

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1801}}^1$

素因数の和:1904

約数の個数: 16

約数和(自身を含む): 25602816

約数和(自身を除く): 4435663

約数列:

[1, 7, 23, 73, 161, 511, 1679, 1801, 11753, 12607, 41423, 131473, 289961, 920311, 3023879, 21167153]

約数ペア:

[(1, 21167153), (7, 3023879), (23, 920311), (73, 289961), (161, 131473), (511, 41423), (1679, 12607), (1801, 11753)]