7871823

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:788

約数の個数: 20

約数和(自身を含む): 11853160

約数和(自身を除く): 3981337

約数列:

[1, 3, 9, 27, 81, 157, 471, 619, 1413, 1857, 4239, 5571, 12717, 16713, 50139, 97183, 291549, 874647, 2623941, 7871823]

約数ペア:

[(1, 7871823), (3, 2623941), (9, 874647), (27, 291549), (81, 97183), (157, 50139), (471, 16713), (619, 12717), (1413, 5571), (1857, 4239)]