19430864

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71437}}^1$

素因数の和:71462

約数の個数: 20

約数和(自身を含む): 39862404

約数和(自身を除く): 20431540

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71437, 142874, 285748, 571496, 1142992, 1214429, 2428858, 4857716, 9715432, 19430864]

約数ペア:

[(1, 19430864), (2, 9715432), (4, 4857716), (8, 2428858), (16, 1214429), (17, 1142992), (34, 571496), (68, 285748), (136, 142874), (272, 71437)]