18907823

素因数分解:

${\mathrm{11}}^2\times {\mathrm{307}}^1\times {\mathrm{509}}^1$

素因数の和:838

約数の個数: 12

約数和(自身を含む): 20891640

約数和(自身を除く): 1983817

約数列:

[1, 11, 121, 307, 509, 3377, 5599, 37147, 61589, 156263, 1718893, 18907823]

約数ペア:

[(1, 18907823), (11, 1718893), (121, 156263), (307, 61589), (509, 37147), (3377, 5599)]