18797139

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 27950832

約数和(自身を除く): 9153693

約数列:

[1, 3, 9, 53, 157, 159, 251, 471, 477, 753, 1413, 2259, 8321, 13303, 24963, 39407, 39909, 74889, 118221, 119727, 354663, 2088571, 6265713, 18797139]

約数ペア:

[(1, 18797139), (3, 6265713), (9, 2088571), (53, 354663), (157, 119727), (159, 118221), (251, 74889), (471, 39909), (477, 39407), (753, 24963), (1413, 13303), (2259, 8321)]