199419857

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{6389}}^1$

素因数の和:6430

約数の個数: 20

約数和(自身を含む): 250577460

約数和(自身を除く): 51157603

約数列:

[1, 7, 13, 49, 91, 343, 637, 2401, 4459, 6389, 31213, 44723, 83057, 313061, 581399, 2191427, 4069793, 15339989, 28488551, 199419857]

約数ペア:

[(1, 199419857), (7, 28488551), (13, 15339989), (49, 4069793), (91, 2191427), (343, 581399), (637, 313061), (2401, 83057), (4459, 44723), (6389, 31213)]