28718019

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{26371}}^1$

素因数の和:26399

約数の個数: 18

約数和(自身を含む): 45597188

約数和(自身を除く): 16879169

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 26371, 79113, 237339, 290081, 870243, 2610729, 3190891, 9572673, 28718019]

約数ペア:

[(1, 28718019), (3, 9572673), (9, 3190891), (11, 2610729), (33, 870243), (99, 290081), (121, 237339), (363, 79113), (1089, 26371)]