28538237

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 36312192

約数和(自身を除く): 7773955

約数列:

[1, 7, 13, 49, 71, 91, 497, 631, 637, 923, 3479, 4417, 6461, 8203, 30919, 44801, 45227, 57421, 313607, 401947, 582413, 2195249, 4076891, 28538237]

約数ペア:

[(1, 28538237), (7, 4076891), (13, 2195249), (49, 582413), (71, 401947), (91, 313607), (497, 57421), (631, 45227), (637, 44801), (923, 30919), (3479, 8203), (4417, 6461)]