221642406

素因数分解:

$2^1\times 3^4\times {\mathrm{1368163}}^1$

素因数の和:1368177

約数の個数: 20

約数和(自身を含む): 496643532

約数和(自身を除く): 275001126

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 1368163, 2736326, 4104489, 8208978, 12313467, 24626934, 36940401, 73880802, 110821203, 221642406]

約数ペア:

[(1, 221642406), (2, 110821203), (3, 73880802), (6, 36940401), (9, 24626934), (18, 12313467), (27, 8208978), (54, 4104489), (81, 2736326), (162, 1368163)]