19893519

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{14447}}^1$

素因数の和:14476

約数の個数: 20

約数和(自身を含む): 31467744

約数和(自身を除く): 11574225

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 14447, 43341, 130023, 245599, 390069, 736797, 1170207, 2210391, 6631173, 19893519]

約数ペア:

[(1, 19893519), (3, 6631173), (9, 2210391), (17, 1170207), (27, 736797), (51, 390069), (81, 245599), (153, 130023), (459, 43341), (1377, 14447)]