21719860

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{6067}}^1$

素因数の和:6255

約数の個数: 24

約数和(自身を含む): 45874080

約数和(自身を除く): 24154220

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 6067, 12134, 24268, 30335, 60670, 121340, 1085993, 2171986, 4343972, 5429965, 10859930, 21719860]

約数ペア:

[(1, 21719860), (2, 10859930), (4, 5429965), (5, 4343972), (10, 2171986), (20, 1085993), (179, 121340), (358, 60670), (716, 30335), (895, 24268), (1790, 12134), (3580, 6067)]