17973904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{86413}}^1$

素因数の和:86434

約数の個数: 20

約数和(自身を含む): 37503676

約数和(自身を除く): 19529772

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 86413, 172826, 345652, 691304, 1123369, 1382608, 2246738, 4493476, 8986952, 17973904]

約数ペア:

[(1, 17973904), (2, 8986952), (4, 4493476), (8, 2246738), (13, 1382608), (16, 1123369), (26, 691304), (52, 345652), (104, 172826), (208, 86413)]