20915168

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{38447}}^1$

素因数の和:38474

約数の個数: 24

約数和(自身を含む): 43600032

約数和(自身を除く): 22684864

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 38447, 76894, 153788, 307576, 615152, 653599, 1230304, 1307198, 2614396, 5228792, 10457584, 20915168]

約数ペア:

[(1, 20915168), (2, 10457584), (4, 5228792), (8, 2614396), (16, 1307198), (17, 1230304), (32, 653599), (34, 615152), (68, 307576), (136, 153788), (272, 76894), (544, 38447)]