219881519

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{599}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 275788800

約数和(自身を除く): 55907281

約数列:

[1, 11, 13, 17, 143, 151, 187, 221, 599, 1661, 1963, 2431, 2567, 6589, 7787, 10183, 21593, 28237, 33371, 85657, 90449, 112013, 132379, 367081, 994939, 1175837, 1456169, 1537633, 12934207, 16913963, 19989229, 219881519]

約数ペア:

[(1, 219881519), (11, 19989229), (13, 16913963), (17, 12934207), (143, 1537633), (151, 1456169), (187, 1175837), (221, 994939), (599, 367081), (1661, 132379), (1963, 112013), (2431, 90449), (2567, 85657), (6589, 33371), (7787, 28237), (10183, 21593)]