64719

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:76

約数の個数: 20

約数和(自身を含む): 104544

約数和(自身を除く): 39825

約数列:

[1, 3, 9, 17, 27, 47, 51, 81, 141, 153, 423, 459, 799, 1269, 1377, 2397, 3807, 7191, 21573, 64719]

約数ペア:

[(1, 64719), (3, 21573), (9, 7191), (17, 3807), (27, 2397), (47, 1377), (51, 1269), (81, 799), (141, 459), (153, 423)]