21766257

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1481}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 33291648

約数和(自身を除く): 11525391

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1481, 1633, 4443, 4899, 13329, 14697, 34063, 102189, 105151, 306567, 315453, 946359, 2418473, 7255419, 21766257]

約数ペア:

[(1, 21766257), (3, 7255419), (9, 2418473), (23, 946359), (69, 315453), (71, 306567), (207, 105151), (213, 102189), (639, 34063), (1481, 14697), (1633, 13329), (4443, 4899)]