18767905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1669}}^1$

素因数の和:1860

約数の個数: 16

約数和(自身を含む): 24408720

約数和(自身を除く): 5640815

約数列:

[1, 5, 13, 65, 173, 865, 1669, 2249, 8345, 11245, 21697, 108485, 288737, 1443685, 3753581, 18767905]

約数ペア:

[(1, 18767905), (5, 3753581), (13, 1443685), (65, 288737), (173, 108485), (865, 21697), (1669, 11245), (2249, 8345)]