19870407

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{8269}}^1$

素因数の和:8367

約数の個数: 16

約数和(自身を含む): 29772000

約数和(自身を除く): 9901593

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 8269, 24807, 74421, 223263, 735941, 2207823, 6623469, 19870407]

約数ペア:

[(1, 19870407), (3, 6623469), (9, 2207823), (27, 735941), (89, 223263), (267, 74421), (801, 24807), (2403, 8269)]