21611156

素因数分解:

$2^2\times 7^2\times {\mathrm{110261}}^1$

素因数の和:110279

約数の個数: 18

約数和(自身を含む): 43994538

約数和(自身を除く): 22383382

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 110261, 220522, 441044, 771827, 1543654, 3087308, 5402789, 10805578, 21611156]

約数ペア:

[(1, 21611156), (2, 10805578), (4, 5402789), (7, 3087308), (14, 1543654), (28, 771827), (49, 441044), (98, 220522), (196, 110261)]