21991497

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{467}}^1\times {\mathrm{1427}}^1$

素因数の和:1908

約数の個数: 16

約数和(自身を含む): 32078592

約数和(自身を除く): 10087095

約数列:

[1, 3, 11, 33, 467, 1401, 1427, 4281, 5137, 15411, 15697, 47091, 666409, 1999227, 7330499, 21991497]

約数ペア:

[(1, 21991497), (3, 7330499), (11, 1999227), (33, 666409), (467, 47091), (1401, 15697), (1427, 15411), (4281, 5137)]