16689231

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2129}}^1$

素因数の和:2215

約数の個数: 24

約数和(自身を含む): 26360880

約数和(自身を除く): 9671649

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2129, 2613, 6387, 7839, 19161, 27677, 83031, 142643, 249093, 427929, 1283787, 1854359, 5563077, 16689231]

約数ペア:

[(1, 16689231), (3, 5563077), (9, 1854359), (13, 1283787), (39, 427929), (67, 249093), (117, 142643), (201, 83031), (603, 27677), (871, 19161), (2129, 7839), (2613, 6387)]