28143693

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{18287}}^1$

素因数の和:18318

約数の個数: 20

約数和(自身を含む): 44256960

約数和(自身を除く): 16113267

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 18287, 54861, 164583, 347453, 493749, 1042359, 1481247, 3127077, 9381231, 28143693]

約数ペア:

[(1, 28143693), (3, 9381231), (9, 3127077), (19, 1481247), (27, 1042359), (57, 493749), (81, 347453), (171, 164583), (513, 54861), (1539, 18287)]