28115171

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 34320384

約数和(自身を除く): 6205213

約数列:

[1, 7, 31, 49, 83, 217, 223, 581, 1519, 1561, 2573, 4067, 6913, 10927, 18011, 18509, 48391, 126077, 129563, 338737, 573779, 906941, 4016453, 28115171]

約数ペア:

[(1, 28115171), (7, 4016453), (31, 906941), (49, 573779), (83, 338737), (217, 129563), (223, 126077), (581, 48391), (1519, 18509), (1561, 18011), (2573, 10927), (4067, 6913)]