21789692

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{631}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 39019680

約数和(自身を除く): 17229988

約数列:

[1, 2, 4, 89, 97, 178, 194, 356, 388, 631, 1262, 2524, 8633, 17266, 34532, 56159, 61207, 112318, 122414, 224636, 244828, 5447423, 10894846, 21789692]

約数ペア:

[(1, 21789692), (2, 10894846), (4, 5447423), (89, 244828), (97, 224636), (178, 122414), (194, 112318), (356, 61207), (388, 56159), (631, 34532), (1262, 17266), (2524, 8633)]