21533911

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1021}}^1$

素因数の和:1182

約数の個数: 16

約数和(自身を含む): 25901568

約数和(自身を除く): 4367657

約数列:

[1, 7, 23, 131, 161, 917, 1021, 3013, 7147, 21091, 23483, 133751, 164381, 936257, 3076273, 21533911]

約数ペア:

[(1, 21533911), (7, 3076273), (23, 936257), (131, 164381), (161, 133751), (917, 23483), (1021, 21091), (3013, 7147)]