19914159

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{1123}}^1$

素因数の和:1406

約数の個数: 16

約数和(自身を含む): 27839232

約数和(自身を除く): 7925073

約数列:

[1, 3, 23, 69, 257, 771, 1123, 3369, 5911, 17733, 25829, 77487, 288611, 865833, 6638053, 19914159]

約数ペア:

[(1, 19914159), (3, 6638053), (23, 865833), (69, 288611), (257, 77487), (771, 25829), (1123, 17733), (3369, 5911)]