21337510

素因数分解:

$2^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8501}}^1$

素因数の和:8759

約数の個数: 16

約数和(自身を含む): 38565072

約数和(自身を除く): 17227562

約数列:

[1, 2, 5, 10, 251, 502, 1255, 2510, 8501, 17002, 42505, 85010, 2133751, 4267502, 10668755, 21337510]

約数ペア:

[(1, 21337510), (2, 10668755), (5, 4267502), (10, 2133751), (251, 85010), (502, 42505), (1255, 17002), (2510, 8501)]