18916161

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{9397}}^1$

素因数の和:9472

約数の個数: 16

約数和(自身を含む): 27968448

約数和(自身を除く): 9052287

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 9397, 28191, 103367, 310101, 573217, 1719651, 6305387, 18916161]

約数ペア:

[(1, 18916161), (3, 6305387), (11, 1719651), (33, 573217), (61, 310101), (183, 103367), (671, 28191), (2013, 9397)]