21369933

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{569}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 13103667

約数列:

[1, 3, 9, 13, 27, 39, 107, 117, 321, 351, 569, 963, 1391, 1707, 2889, 4173, 5121, 7397, 12519, 15363, 22191, 37557, 60883, 66573, 182649, 199719, 547947, 791479, 1643841, 2374437, 7123311, 21369933]

約数ペア:

[(1, 21369933), (3, 7123311), (9, 2374437), (13, 1643841), (27, 791479), (39, 547947), (107, 199719), (117, 182649), (321, 66573), (351, 60883), (569, 37557), (963, 22191), (1391, 15363), (1707, 12519), (2889, 7397), (4173, 5121)]