51206421

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{8101}}^1$

素因数の和:8161

約数の個数: 24

約数和(自身を含む): 81279264

約数和(自身を除く): 30072843

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 6321, 8101, 24303, 56707, 170121, 348343, 396949, 1045029, 1190847, 2438401, 7315203, 17068807, 51206421]

約数ペア:

[(1, 51206421), (3, 17068807), (7, 7315203), (21, 2438401), (43, 1190847), (49, 1045029), (129, 396949), (147, 348343), (301, 170121), (903, 56707), (2107, 24303), (6321, 8101)]