9678431

素因数分解:

$7^4\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:196

約数の個数: 20

約数和(自身を含む): 11764200

約数和(自身を除く): 2085769

約数列:

[1, 7, 29, 49, 139, 203, 343, 973, 1421, 2401, 4031, 6811, 9947, 28217, 47677, 69629, 197519, 333739, 1382633, 9678431]

約数ペア:

[(1, 9678431), (7, 1382633), (29, 333739), (49, 197519), (139, 69629), (203, 47677), (343, 28217), (973, 9947), (1421, 6811), (2401, 4031)]