21721212565

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{733}}^1\times {\mathrm{35069}}^1$

素因数の和:35833

約数の個数: 24

約数和(自身を含む): 28264035240

約数和(自身を除く): 6542822675

約数列:

[1, 5, 13, 65, 169, 733, 845, 3665, 9529, 35069, 47645, 123877, 175345, 455897, 619385, 2279485, 5926661, 25705577, 29633305, 128527885, 334172501, 1670862505, 4344242513, 21721212565]

約数ペア:

[(1, 21721212565), (5, 4344242513), (13, 1670862505), (65, 334172501), (169, 128527885), (733, 29633305), (845, 25705577), (3665, 5926661), (9529, 2279485), (35069, 619385), (47645, 455897), (123877, 175345)]