21842044

素因数分解:

$2^2\times 7^2\times {\mathrm{111439}}^1$

素因数の和:111457

約数の個数: 18

約数和(自身を含む): 44464560

約数和(自身を除く): 22622516

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 111439, 222878, 445756, 780073, 1560146, 3120292, 5460511, 10921022, 21842044]

約数ペア:

[(1, 21842044), (2, 10921022), (4, 5460511), (7, 3120292), (14, 1560146), (28, 780073), (49, 445756), (98, 222878), (196, 111439)]