397204633

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{8707}}^1$

素因数の和:8754

約数の個数: 20

約数和(自身を含む): 487822160

約数和(自身を除く): 90617527

約数列:

[1, 7, 19, 49, 133, 343, 931, 2401, 6517, 8707, 45619, 60949, 165433, 426643, 1158031, 2986501, 8106217, 20905507, 56743519, 397204633]

約数ペア:

[(1, 397204633), (7, 56743519), (19, 20905507), (49, 8106217), (133, 2986501), (343, 1158031), (931, 426643), (2401, 165433), (6517, 60949), (8707, 45619)]