18866029

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{4231}}^1$

素因数の和:4265

約数の個数: 16

約数和(自身を含む): 23699200

約数和(自身を除く): 4833171

約数列:

[1, 7, 13, 49, 91, 343, 637, 4231, 4459, 29617, 55003, 207319, 385021, 1451233, 2695147, 18866029]

約数ペア:

[(1, 18866029), (7, 2695147), (13, 1451233), (49, 385021), (91, 207319), (343, 55003), (637, 29617), (4231, 4459)]