18719195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{10979}}^1$

素因数の和:11026

約数の個数: 16

約数和(自身を含む): 25297920

約数和(自身を除く): 6578725

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 10979, 54895, 120769, 340349, 603845, 1701745, 3743839, 18719195]

約数ペア:

[(1, 18719195), (5, 3743839), (11, 1701745), (31, 603845), (55, 340349), (155, 120769), (341, 54895), (1705, 10979)]