199535791

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{613}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 254441600

約数和(自身を除く): 54905809

約数列:

[1, 7, 13, 49, 73, 91, 343, 511, 613, 637, 949, 3577, 4291, 4459, 6643, 7969, 25039, 30037, 44749, 46501, 55783, 210259, 313243, 325507, 390481, 581737, 2192701, 2733367, 4072159, 15348907, 28505113, 199535791]

約数ペア:

[(1, 199535791), (7, 28505113), (13, 15348907), (49, 4072159), (73, 2733367), (91, 2192701), (343, 581737), (511, 390481), (613, 325507), (637, 313243), (949, 210259), (3577, 55783), (4291, 46501), (4459, 44749), (6643, 30037), (7969, 25039)]