19221605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2713}}^1$

素因数の和:2840

約数の個数: 16

約数和(自身を含む): 25077360

約数和(自身を除く): 5855755

約数列:

[1, 5, 13, 65, 109, 545, 1417, 2713, 7085, 13565, 35269, 176345, 295717, 1478585, 3844321, 19221605]

約数ペア:

[(1, 19221605), (5, 3844321), (13, 1478585), (65, 295717), (109, 176345), (545, 35269), (1417, 13565), (2713, 7085)]