21187869687

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{1193}}^1\times {\mathrm{29453}}^1$

素因数の和:30719

約数の個数: 24

約数和(自身を含む): 31088579184

約数和(自身を除く): 9900709497

約数列:

[1, 3, 9, 67, 201, 603, 1193, 3579, 10737, 29453, 79931, 88359, 239793, 265077, 719379, 1973351, 5920053, 17760159, 35137429, 105412287, 316236861, 2354207743, 7062623229, 21187869687]

約数ペア:

[(1, 21187869687), (3, 7062623229), (9, 2354207743), (67, 316236861), (201, 105412287), (603, 35137429), (1193, 17760159), (3579, 5920053), (10737, 1973351), (29453, 719379), (79931, 265077), (88359, 239793)]