19801629

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2693}}^1$

素因数の和:2761

約数の個数: 24

約数和(自身を含む): 30819360

約数和(自身を除く): 11017731

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 2693, 7353, 8079, 24237, 51167, 115799, 153501, 347397, 460503, 1042191, 2200181, 6600543, 19801629]

約数ペア:

[(1, 19801629), (3, 6600543), (9, 2200181), (19, 1042191), (43, 460503), (57, 347397), (129, 153501), (171, 115799), (387, 51167), (817, 24237), (2451, 8079), (2693, 7353)]