19909774

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{6257}}^1$

素因数の和:6339

約数の個数: 16

約数和(自身を含む): 31390128

約数和(自身を除く): 11480354

約数列:

[1, 2, 37, 43, 74, 86, 1591, 3182, 6257, 12514, 231509, 269051, 463018, 538102, 9954887, 19909774]

約数ペア:

[(1, 19909774), (2, 9954887), (37, 538102), (43, 463018), (74, 269051), (86, 231509), (1591, 12514), (3182, 6257)]