221008

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{727}}^1$

素因数の和:754

約数の個数: 20

約数和(自身を含む): 451360

約数和(自身を除く): 230352

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 727, 1454, 2908, 5816, 11632, 13813, 27626, 55252, 110504, 221008]

約数ペア:

[(1, 221008), (2, 110504), (4, 55252), (8, 27626), (16, 13813), (19, 11632), (38, 5816), (76, 2908), (152, 1454), (304, 727)]