21519768

素因数分解:

$2^3\times 3^1\times {\mathrm{863}}^1\times {\mathrm{1039}}^1$

素因数の和:1911

約数の個数: 32

約数和(自身を含む): 53913600

約数和(自身を除く): 32393832

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 863, 1039, 1726, 2078, 2589, 3117, 3452, 4156, 5178, 6234, 6904, 8312, 10356, 12468, 20712, 24936, 896657, 1793314, 2689971, 3586628, 5379942, 7173256, 10759884, 21519768]

約数ペア:

[(1, 21519768), (2, 10759884), (3, 7173256), (4, 5379942), (6, 3586628), (8, 2689971), (12, 1793314), (24, 896657), (863, 24936), (1039, 20712), (1726, 12468), (2078, 10356), (2589, 8312), (3117, 6904), (3452, 6234), (4156, 5178)]