21037478

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{136607}}^1$

素因数の和:136627

約数の個数: 16

約数和(自身を含む): 39343104

約数和(自身を除く): 18305626

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 136607, 273214, 956249, 1502677, 1912498, 3005354, 10518739, 21037478]

約数ペア:

[(1, 21037478), (2, 10518739), (7, 3005354), (11, 1912498), (14, 1502677), (22, 956249), (77, 273214), (154, 136607)]