20644221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2687}}^1$

素因数の和:2900

約数の個数: 16

約数和(自身を含む): 29804544

約数和(自身を除く): 9160323

約数列:

[1, 3, 13, 39, 197, 591, 2561, 2687, 7683, 8061, 34931, 104793, 529339, 1588017, 6881407, 20644221]

約数ペア:

[(1, 20644221), (3, 6881407), (13, 1588017), (39, 529339), (197, 104793), (591, 34931), (2561, 8061), (2687, 7683)]