19940679

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{18311}}^1$

素因数の和:18339

約数の個数: 18

約数和(自身を含む): 31661448

約数和(自身を除く): 11720769

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 18311, 54933, 164799, 201421, 604263, 1812789, 2215631, 6646893, 19940679]

約数ペア:

[(1, 19940679), (3, 6646893), (9, 2215631), (11, 1812789), (33, 604263), (99, 201421), (121, 164799), (363, 54933), (1089, 18311)]