21210778

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{739}}^1$

素因数の和:981

約数の個数: 16

約数和(自身を含む): 32394240

約数和(自身を除く): 11183462

約数列:

[1, 2, 113, 127, 226, 254, 739, 1478, 14351, 28702, 83507, 93853, 167014, 187706, 10605389, 21210778]

約数ペア:

[(1, 21210778), (2, 10605389), (113, 187706), (127, 167014), (226, 93853), (254, 83507), (739, 28702), (1478, 14351)]