21708184

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 25293416

約数列:

[1, 2, 4, 8, 17, 19, 31, 34, 38, 62, 68, 76, 124, 136, 152, 248, 271, 323, 527, 542, 589, 646, 1054, 1084, 1178, 1292, 2108, 2168, 2356, 2584, 4216, 4607, 4712, 5149, 8401, 9214, 10013, 10298, 16802, 18428, 20026, 20596, 33604, 36856, 40052, 41192, 67208, 80104, 87533, 142817, 159619, 175066, 285634, 319238, 350132, 571268, 638476, 700264, 1142536, 1276952, 2713523, 5427046, 10854092, 21708184]

約数ペア:

[(1, 21708184), (2, 10854092), (4, 5427046), (8, 2713523), (17, 1276952), (19, 1142536), (31, 700264), (34, 638476), (38, 571268), (62, 350132), (68, 319238), (76, 285634), (124, 175066), (136, 159619), (152, 142817), (248, 87533), (271, 80104), (323, 67208), (527, 41192), (542, 40052), (589, 36856), (646, 33604), (1054, 20596), (1084, 20026), (1178, 18428), (1292, 16802), (2108, 10298), (2168, 10013), (2356, 9214), (2584, 8401), (4216, 5149), (4607, 4712)]