18115559

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 24136704

約数和(自身を除く): 6021145

約数列:

[1, 7, 11, 23, 53, 77, 161, 193, 253, 371, 583, 1219, 1351, 1771, 2123, 4081, 4439, 8533, 10229, 13409, 14861, 31073, 48829, 71603, 93863, 112519, 235267, 341803, 787633, 1646869, 2587937, 18115559]

約数ペア:

[(1, 18115559), (7, 2587937), (11, 1646869), (23, 787633), (53, 341803), (77, 235267), (161, 112519), (193, 93863), (253, 71603), (371, 48829), (583, 31073), (1219, 14861), (1351, 13409), (1771, 10229), (2123, 8533), (4081, 4439)]