8681421

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{11173}}^1$

素因数の和:11220

約数の個数: 16

約数和(自身を含む): 13587584

約数和(自身を除く): 4906163

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 11173, 33519, 78211, 234633, 413401, 1240203, 2893807, 8681421]

約数ペア:

[(1, 8681421), (3, 2893807), (7, 1240203), (21, 413401), (37, 234633), (111, 78211), (259, 33519), (777, 11173)]