20819565

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11863}}^1$

素因数の和:11890

約数の個数: 32

約数和(自身を含む): 39863040

約数和(自身を除く): 19043475

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11863, 35589, 59315, 106767, 154219, 177945, 320301, 462657, 533835, 771095, 1387971, 1601505, 2313285, 4163913, 6939855, 20819565]

約数ペア:

[(1, 20819565), (3, 6939855), (5, 4163913), (9, 2313285), (13, 1601505), (15, 1387971), (27, 771095), (39, 533835), (45, 462657), (65, 320301), (117, 177945), (135, 154219), (195, 106767), (351, 59315), (585, 35589), (1755, 11863)]