20666151

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 13029849

約数列:

[1, 3, 9, 11, 27, 33, 99, 149, 297, 447, 467, 1341, 1401, 1639, 4023, 4203, 4917, 5137, 12609, 14751, 15411, 44253, 46233, 69583, 138699, 208749, 626247, 765413, 1878741, 2296239, 6888717, 20666151]

約数ペア:

[(1, 20666151), (3, 6888717), (9, 2296239), (11, 1878741), (27, 765413), (33, 626247), (99, 208749), (149, 138699), (297, 69583), (447, 46233), (467, 44253), (1341, 15411), (1401, 14751), (1639, 12609), (4023, 5137), (4203, 4917)]