18367321

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 21683200

約数和(自身を除く): 3315879

約数列:

[1, 7, 43, 139, 301, 439, 973, 3073, 5977, 18877, 41839, 61021, 132139, 427147, 2623903, 18367321]

約数ペア:

[(1, 18367321), (7, 2623903), (43, 427147), (139, 132139), (301, 61021), (439, 41839), (973, 18877), (3073, 5977)]