21951352

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{161407}}^1$

素因数の和:161430

約数の個数: 16

約数和(自身を含む): 43580160

約数和(自身を除く): 21628808

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 161407, 322814, 645628, 1291256, 2743919, 5487838, 10975676, 21951352]

約数ペア:

[(1, 21951352), (2, 10975676), (4, 5487838), (8, 2743919), (17, 1291256), (34, 645628), (68, 322814), (136, 161407)]