19862165

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1$

素因数の和:1172

約数の個数: 16

約数和(自身を含む): 24821760

約数和(自身を除く): 4959595

約数列:

[1, 5, 31, 127, 155, 635, 1009, 3937, 5045, 19685, 31279, 128143, 156395, 640715, 3972433, 19862165]

約数ペア:

[(1, 19862165), (5, 3972433), (31, 640715), (127, 156395), (155, 128143), (635, 31279), (1009, 19685), (3937, 5045)]