15997904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{76913}}^1$

素因数の和:76934

約数の個数: 20

約数和(自身を含む): 33380676

約数和(自身を除く): 17382772

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 76913, 153826, 307652, 615304, 999869, 1230608, 1999738, 3999476, 7998952, 15997904]

約数ペア:

[(1, 15997904), (2, 7998952), (4, 3999476), (8, 1999738), (13, 1230608), (16, 999869), (26, 615304), (52, 307652), (104, 153826), (208, 76913)]