21671888

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:264

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 29753392

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 47, 56, 92, 94, 112, 161, 179, 184, 188, 322, 329, 358, 368, 376, 644, 658, 716, 752, 1081, 1253, 1288, 1316, 1432, 2162, 2506, 2576, 2632, 2864, 4117, 4324, 5012, 5264, 7567, 8234, 8413, 8648, 10024, 15134, 16468, 16826, 17296, 20048, 28819, 30268, 32936, 33652, 57638, 58891, 60536, 65872, 67304, 115276, 117782, 121072, 134608, 193499, 230552, 235564, 386998, 461104, 471128, 773996, 942256, 1354493, 1547992, 2708986, 3095984, 5417972, 10835944, 21671888]

約数ペア:

[(1, 21671888), (2, 10835944), (4, 5417972), (7, 3095984), (8, 2708986), (14, 1547992), (16, 1354493), (23, 942256), (28, 773996), (46, 471128), (47, 461104), (56, 386998), (92, 235564), (94, 230552), (112, 193499), (161, 134608), (179, 121072), (184, 117782), (188, 115276), (322, 67304), (329, 65872), (358, 60536), (368, 58891), (376, 57638), (644, 33652), (658, 32936), (716, 30268), (752, 28819), (1081, 20048), (1253, 17296), (1288, 16826), (1316, 16468), (1432, 15134), (2162, 10024), (2506, 8648), (2576, 8413), (2632, 8234), (2864, 7567), (4117, 5264), (4324, 5012)]