21124112

素因数分解:

$2^4\times {\mathrm{487}}^1\times {\mathrm{2711}}^1$

素因数の和:3206

約数の個数: 20

約数和(自身を含む): 41027136

約数和(自身を除く): 19903024

約数列:

[1, 2, 4, 8, 16, 487, 974, 1948, 2711, 3896, 5422, 7792, 10844, 21688, 43376, 1320257, 2640514, 5281028, 10562056, 21124112]

約数ペア:

[(1, 21124112), (2, 10562056), (4, 5281028), (8, 2640514), (16, 1320257), (487, 43376), (974, 21688), (1948, 10844), (2711, 7792), (3896, 5422)]