20121894621

素因数分解:

$3^2\times {\mathrm{1607}}^1\times {\mathrm{1391267}}^1$

素因数の和:1392880

約数の個数: 12

約数和(自身を含む): 29083066272

約数和(自身を除く): 8961171651

約数列:

[1, 3, 9, 1607, 4821, 14463, 1391267, 4173801, 12521403, 2235766069, 6707298207, 20121894621]

約数ペア:

[(1, 20121894621), (3, 6707298207), (9, 2235766069), (1607, 12521403), (4821, 4173801), (14463, 1391267)]