21945339

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3539}}^1$

素因数の和:3611

約数の個数: 24

約数和(自身を含む): 34791120

約数和(自身を除く): 12845781

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3539, 6201, 10617, 31851, 46007, 138021, 187567, 414063, 562701, 1688103, 2438371, 7315113, 21945339]

約数ペア:

[(1, 21945339), (3, 7315113), (9, 2438371), (13, 1688103), (39, 562701), (53, 414063), (117, 187567), (159, 138021), (477, 46007), (689, 31851), (2067, 10617), (3539, 6201)]