20787019

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1297}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 23924736

約数和(自身を除く): 3137717

約数列:

[1, 11, 31, 47, 341, 517, 1297, 1457, 14267, 16027, 40207, 60959, 442277, 670549, 1889729, 20787019]

約数ペア:

[(1, 20787019), (11, 1889729), (31, 670549), (47, 442277), (341, 60959), (517, 40207), (1297, 16027), (1457, 14267)]