18168471

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{461}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 27387360

約数和(自身を除く): 9218889

約数列:

[1, 3, 9, 29, 87, 151, 261, 453, 461, 1359, 1383, 4149, 4379, 13137, 13369, 39411, 40107, 69611, 120321, 208833, 626499, 2018719, 6056157, 18168471]

約数ペア:

[(1, 18168471), (3, 6056157), (9, 2018719), (29, 626499), (87, 208833), (151, 120321), (261, 69611), (453, 40107), (461, 39411), (1359, 13369), (1383, 13137), (4149, 4379)]