21193611

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2789}}^1$

素因数の和:2958

約数の個数: 16

約数和(自身を含む): 30132000

約数和(自身を除く): 8938389

約数列:

[1, 3, 17, 51, 149, 447, 2533, 2789, 7599, 8367, 47413, 142239, 415561, 1246683, 7064537, 21193611]

約数ペア:

[(1, 21193611), (3, 7064537), (17, 1246683), (51, 415561), (149, 142239), (447, 47413), (2533, 8367), (2789, 7599)]