20165089

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{499}}^1$

素因数の和:780

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 4026911

約数列:

[1, 7, 23, 161, 251, 499, 1757, 3493, 5773, 11477, 40411, 80339, 125249, 876743, 2880727, 20165089]

約数ペア:

[(1, 20165089), (7, 2880727), (23, 876743), (161, 125249), (251, 80339), (499, 40411), (1757, 11477), (3493, 5773)]