19874162

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 40255488

約数和(自身を除く): 20381326

約数列:

[1, 2, 7, 11, 14, 22, 23, 31, 46, 62, 77, 154, 161, 181, 217, 253, 322, 341, 362, 434, 506, 682, 713, 1267, 1426, 1771, 1991, 2387, 2534, 3542, 3982, 4163, 4774, 4991, 5611, 7843, 8326, 9982, 11222, 13937, 15686, 27874, 29141, 39277, 45793, 54901, 58282, 61721, 78554, 91586, 109802, 123442, 129053, 258106, 320551, 432047, 641102, 864094, 903371, 1419583, 1806742, 2839166, 9937081, 19874162]

約数ペア:

[(1, 19874162), (2, 9937081), (7, 2839166), (11, 1806742), (14, 1419583), (22, 903371), (23, 864094), (31, 641102), (46, 432047), (62, 320551), (77, 258106), (154, 129053), (161, 123442), (181, 109802), (217, 91586), (253, 78554), (322, 61721), (341, 58282), (362, 54901), (434, 45793), (506, 39277), (682, 29141), (713, 27874), (1267, 15686), (1426, 13937), (1771, 11222), (1991, 9982), (2387, 8326), (2534, 7843), (3542, 5611), (3982, 4991), (4163, 4774)]