20079403407

素因数分解:

$3^2\times 7^2\times {\mathrm{45531527}}^1$

素因数の和:45531547

約数の個数: 18

約数和(自身を含む): 33738862248

約数和(自身を除く): 13659458841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45531527, 136594581, 318720689, 409783743, 956162067, 2231044823, 2868486201, 6693134469, 20079403407]

約数ペア:

[(1, 20079403407), (3, 6693134469), (7, 2868486201), (9, 2231044823), (21, 956162067), (49, 409783743), (63, 318720689), (147, 136594581), (441, 45531527)]