128722013

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{1409}}^1$

素因数の和:1868

約数の個数: 16

約数和(自身を含む): 152325120

約数和(自身を除く): 23603107

約数列:

[1, 7, 31, 217, 421, 1409, 2947, 9863, 13051, 43679, 91357, 305753, 593189, 4152323, 18388859, 128722013]

約数ペア:

[(1, 128722013), (7, 18388859), (31, 4152323), (217, 593189), (421, 305753), (1409, 91357), (2947, 43679), (9863, 13051)]