201961221

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{79481}}^1$

素因数の和:79513

約数の個数: 24

約数和(自身を含む): 338275392

約数和(自身を除く): 136314171

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 79481, 238443, 556367, 874291, 1669101, 2622873, 6120037, 9617201, 18360111, 28851603, 67320407, 201961221]

約数ペア:

[(1, 201961221), (3, 67320407), (7, 28851603), (11, 18360111), (21, 9617201), (33, 6120037), (77, 2622873), (121, 1669101), (231, 874291), (363, 556367), (847, 238443), (2541, 79481)]