21729147

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15313}}^1$

素因数の和:15370

約数の個数: 16

約数和(自身を含む): 32343168

約数和(自身を除く): 10614021

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 15313, 45939, 168443, 505329, 658459, 1975377, 7243049, 21729147]

約数ペア:

[(1, 21729147), (3, 7243049), (11, 1975377), (33, 658459), (43, 505329), (129, 168443), (473, 45939), (1419, 15313)]