128791887

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197837}}^1$

素因数の和:197878

約数の個数: 16

約数和(自身を含む): 202586112

約数和(自身を除く): 73794225

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 197837, 593511, 1384859, 4154577, 6132947, 18398841, 42930629, 128791887]

約数ペア:

[(1, 128791887), (3, 42930629), (7, 18398841), (21, 6132947), (31, 4154577), (93, 1384859), (217, 593511), (651, 197837)]