2880347841

素因数分解:

$3^2\times 7^2\times {\mathrm{6531401}}^1$

素因数の和:6531421

約数の個数: 18

約数和(自身を含む): 4839768882

約数和(自身を除く): 1959421041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 6531401, 19594203, 45719807, 58782609, 137159421, 320038649, 411478263, 960115947, 2880347841]

約数ペア:

[(1, 2880347841), (3, 960115947), (7, 411478263), (9, 320038649), (21, 137159421), (49, 58782609), (63, 45719807), (147, 19594203), (441, 6531401)]