21379858

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{6719}}^1$

素因数の和:6801

約数の個数: 16

約数和(自身を含む): 33707520

約数和(自身を除く): 12327662

約数列:

[1, 2, 37, 43, 74, 86, 1591, 3182, 6719, 13438, 248603, 288917, 497206, 577834, 10689929, 21379858]

約数ペア:

[(1, 21379858), (2, 10689929), (37, 577834), (43, 497206), (74, 288917), (86, 248603), (1591, 13438), (3182, 6719)]