12661221

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1609}}^1$

素因数の和:1716

約数の個数: 16

約数和(自身を含む): 17568320

約数和(自身を除く): 4907099

約数列:

[1, 3, 43, 61, 129, 183, 1609, 2623, 4827, 7869, 69187, 98149, 207561, 294447, 4220407, 12661221]

約数ペア:

[(1, 12661221), (3, 4220407), (43, 294447), (61, 207561), (129, 98149), (183, 69187), (1609, 7869), (2623, 4827)]