21311878

素因数分解:

$2^1\times 7^1\times {\mathrm{751}}^1\times {\mathrm{2027}}^1$

素因数の和:2787

約数の個数: 16

約数和(自身を含む): 36601344

約数和(自身を除く): 15289466

約数列:

[1, 2, 7, 14, 751, 1502, 2027, 4054, 5257, 10514, 14189, 28378, 1522277, 3044554, 10655939, 21311878]

約数ペア:

[(1, 21311878), (2, 10655939), (7, 3044554), (14, 1522277), (751, 28378), (1502, 14189), (2027, 10514), (4054, 5257)]