21972184

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211271}}^1$

素因数の和:211290

約数の個数: 16

約数和(自身を含む): 44367120

約数和(自身を除く): 22394936

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211271, 422542, 845084, 1690168, 2746523, 5493046, 10986092, 21972184]

約数ペア:

[(1, 21972184), (2, 10986092), (4, 5493046), (8, 2746523), (13, 1690168), (26, 845084), (52, 422542), (104, 211271)]