21250376

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12241}}^1$

素因数の和:12285

約数の個数: 32

約数和(自身を含む): 47009280

約数和(自身を除く): 25758904

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12241, 24482, 48964, 85687, 97928, 171374, 342748, 379471, 685496, 758942, 1517884, 2656297, 3035768, 5312594, 10625188, 21250376]

約数ペア:

[(1, 21250376), (2, 10625188), (4, 5312594), (7, 3035768), (8, 2656297), (14, 1517884), (28, 758942), (31, 685496), (56, 379471), (62, 342748), (124, 171374), (217, 97928), (248, 85687), (434, 48964), (868, 24482), (1736, 12241)]