21191786

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 42909696

約数和(自身を除く): 21717910

約数列:

[1, 2, 7, 11, 14, 22, 23, 31, 46, 62, 77, 154, 161, 193, 217, 253, 322, 341, 386, 434, 506, 682, 713, 1351, 1426, 1771, 2123, 2387, 2702, 3542, 4246, 4439, 4774, 4991, 5983, 7843, 8878, 9982, 11966, 14861, 15686, 29722, 31073, 41881, 48829, 54901, 62146, 65813, 83762, 97658, 109802, 131626, 137609, 275218, 341803, 460691, 683606, 921382, 963263, 1513699, 1926526, 3027398, 10595893, 21191786]

約数ペア:

[(1, 21191786), (2, 10595893), (7, 3027398), (11, 1926526), (14, 1513699), (22, 963263), (23, 921382), (31, 683606), (46, 460691), (62, 341803), (77, 275218), (154, 137609), (161, 131626), (193, 109802), (217, 97658), (253, 83762), (322, 65813), (341, 62146), (386, 54901), (434, 48829), (506, 41881), (682, 31073), (713, 29722), (1351, 15686), (1426, 14861), (1771, 11966), (2123, 9982), (2387, 8878), (2702, 7843), (3542, 5983), (4246, 4991), (4439, 4774)]