20189951991

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2872379}}^1$

素因数の和:2872467

約数の個数: 24

約数和(自身を含む): 32262572160

約数和(自身を除く): 12072620169

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 7029, 2872379, 8617137, 25851411, 31596169, 94788507, 203938909, 284365521, 611816727, 1835450181, 2243327999, 6729983997, 20189951991]

約数ペア:

[(1, 20189951991), (3, 6729983997), (9, 2243327999), (11, 1835450181), (33, 611816727), (71, 284365521), (99, 203938909), (213, 94788507), (639, 31596169), (781, 25851411), (2343, 8617137), (7029, 2872379)]