21921676

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{11027}}^1$

素因数の和:11109

約数の個数: 24

約数和(自身を含む): 44464896

約数和(自身を除く): 22543220

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 11027, 22054, 44108, 77189, 154378, 308756, 782917, 1565834, 3131668, 5480419, 10960838, 21921676]

約数ペア:

[(1, 21921676), (2, 10960838), (4, 5480419), (7, 3131668), (14, 1565834), (28, 782917), (71, 308756), (142, 154378), (284, 77189), (497, 44108), (994, 22054), (1988, 11027)]