21051297

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{401}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 32192160

約数和(自身を除く): 11140863

約数列:

[1, 3, 9, 19, 57, 171, 307, 401, 921, 1203, 2763, 3609, 5833, 7619, 17499, 22857, 52497, 68571, 123107, 369321, 1107963, 2339033, 7017099, 21051297]

約数ペア:

[(1, 21051297), (3, 7017099), (9, 2339033), (19, 1107963), (57, 369321), (171, 123107), (307, 68571), (401, 52497), (921, 22857), (1203, 17499), (2763, 7619), (3609, 5833)]