21514156

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:406

約数の個数: 36

約数和(自身を含む): 40709088

約数和(自身を除く): 19194932

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 317, 361, 634, 722, 893, 1268, 1444, 1786, 3572, 6023, 12046, 14899, 16967, 24092, 29798, 33934, 59596, 67868, 114437, 228874, 283081, 457748, 566162, 1132324, 5378539, 10757078, 21514156]

約数ペア:

[(1, 21514156), (2, 10757078), (4, 5378539), (19, 1132324), (38, 566162), (47, 457748), (76, 283081), (94, 228874), (188, 114437), (317, 67868), (361, 59596), (634, 33934), (722, 29798), (893, 24092), (1268, 16967), (1444, 14899), (1786, 12046), (3572, 6023)]