21618982

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1777}}^1$

素因数の和:1876

約数の個数: 32

約数和(自身を含む): 40965120

約数和(自身を除く): 19346138

約数列:

[1, 2, 7, 11, 14, 22, 77, 79, 154, 158, 553, 869, 1106, 1738, 1777, 3554, 6083, 12166, 12439, 19547, 24878, 39094, 136829, 140383, 273658, 280766, 982681, 1544213, 1965362, 3088426, 10809491, 21618982]

約数ペア:

[(1, 21618982), (2, 10809491), (7, 3088426), (11, 1965362), (14, 1544213), (22, 982681), (77, 280766), (79, 273658), (154, 140383), (158, 136829), (553, 39094), (869, 24878), (1106, 19547), (1738, 12439), (1777, 12166), (3554, 6083)]