21008702015

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19362859}}^1$

素因数の和:19362902

約数の個数: 16

約数和(自身を含む): 29741352960

約数和(自身を除く): 8732650945

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 19362859, 96814295, 135540013, 600248629, 677700065, 3001243145, 4201740403, 21008702015]

約数ペア:

[(1, 21008702015), (5, 4201740403), (7, 3001243145), (31, 677700065), (35, 600248629), (155, 135540013), (217, 96814295), (1085, 19362859)]