209121008

素因数分解:

$2^4\times {\mathrm{823}}^1\times {\mathrm{15881}}^1$

素因数の和:16712

約数の個数: 20

約数和(自身を含む): 405689808

約数和(自身を除く): 196568800

約数列:

[1, 2, 4, 8, 16, 823, 1646, 3292, 6584, 13168, 15881, 31762, 63524, 127048, 254096, 13070063, 26140126, 52280252, 104560504, 209121008]

約数ペア:

[(1, 209121008), (2, 104560504), (4, 52280252), (8, 26140126), (16, 13070063), (823, 254096), (1646, 127048), (3292, 63524), (6584, 31762), (13168, 15881)]