21000578403

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{32258953}}^1$

素因数の和:32258994

約数の個数: 16

約数和(自身を含む): 33033168896

約数和(自身を除く): 12032590493

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 32258953, 96776859, 225812671, 677438013, 1000027543, 3000082629, 7000192801, 21000578403]

約数ペア:

[(1, 21000578403), (3, 7000192801), (7, 3000082629), (21, 1000027543), (31, 677438013), (93, 225812671), (217, 96776859), (651, 32258953)]