18723903

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{51581}}^1$

素因数の和:51606

約数の個数: 12

約数和(自身を含む): 27441624

約数和(自身を除く): 8717721

約数列:

[1, 3, 11, 33, 121, 363, 51581, 154743, 567391, 1702173, 6241301, 18723903]

約数ペア:

[(1, 18723903), (3, 6241301), (11, 1702173), (33, 567391), (121, 154743), (363, 51581)]