17720144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{85193}}^1$

素因数の和:85214

約数の個数: 20

約数和(自身を含む): 36974196

約数和(自身を除く): 19254052

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 85193, 170386, 340772, 681544, 1107509, 1363088, 2215018, 4430036, 8860072, 17720144]

約数ペア:

[(1, 17720144), (2, 8860072), (4, 4430036), (8, 2215018), (13, 1363088), (16, 1107509), (26, 681544), (52, 340772), (104, 170386), (208, 85193)]