20145769

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{797}}^1$

素因数の和:984

約数の個数: 16

約数和(自身を含む): 24208128

約数和(自身を除く): 4062359

約数列:

[1, 7, 23, 157, 161, 797, 1099, 3611, 5579, 18331, 25277, 125129, 128317, 875903, 2877967, 20145769]

約数ペア:

[(1, 20145769), (7, 2877967), (23, 875903), (157, 128317), (161, 125129), (797, 25277), (1099, 18331), (3611, 5579)]