21997294

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{1447}}^1$

素因数の和:2151

約数の個数: 16

約数和(自身を含む): 36072576

約数和(自身を除く): 14075282

約数列:

[1, 2, 11, 22, 691, 1382, 1447, 2894, 7601, 15202, 15917, 31834, 999877, 1999754, 10998647, 21997294]

約数ペア:

[(1, 21997294), (2, 10998647), (11, 1999754), (22, 999877), (691, 31834), (1382, 15917), (1447, 15202), (2894, 7601)]