20389953

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{2311}}^1$

素因数の和:2504

約数の個数: 16

約数和(自身を含む): 28964736

約数和(自身を除く): 8574783

約数列:

[1, 3, 17, 51, 173, 519, 2311, 2941, 6933, 8823, 39287, 117861, 399803, 1199409, 6796651, 20389953]

約数ペア:

[(1, 20389953), (3, 6796651), (17, 1199409), (51, 399803), (173, 117861), (519, 39287), (2311, 8823), (2941, 6933)]