21000201670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{300002881}}^1$

素因数の和:300002895

約数の個数: 16

約数和(自身を含む): 43200415008

約数和(自身を除く): 22200213338

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 300002881, 600005762, 1500014405, 2100020167, 3000028810, 4200040334, 10500100835, 21000201670]

約数ペア:

[(1, 21000201670), (2, 10500100835), (5, 4200040334), (7, 3000028810), (10, 2100020167), (14, 1500014405), (35, 600005762), (70, 300002881)]