21143888

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{6263}}^1$

素因数の和:6482

約数の個数: 20

約数和(自身を含む): 41167008

約数和(自身を除く): 20023120

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 6263, 12526, 25052, 50104, 100208, 1321493, 2642986, 5285972, 10571944, 21143888]

約数ペア:

[(1, 21143888), (2, 10571944), (4, 5285972), (8, 2642986), (16, 1321493), (211, 100208), (422, 50104), (844, 25052), (1688, 12526), (3376, 6263)]