420989049

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{27893}}^1$

素因数の和:27958

約数の個数: 32

約数和(自身を含む): 687308160

約数和(自身を除く): 266319111

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 5031, 15093, 27893, 83679, 251037, 362609, 753111, 1087827, 1199399, 3263481, 3598197, 9790443, 10794591, 15592187, 32383773, 46776561, 140329683, 420989049]

約数ペア:

[(1, 420989049), (3, 140329683), (9, 46776561), (13, 32383773), (27, 15592187), (39, 10794591), (43, 9790443), (117, 3598197), (129, 3263481), (351, 1199399), (387, 1087827), (559, 753111), (1161, 362609), (1677, 251037), (5031, 83679), (15093, 27893)]