81721284

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{95917}}^1$

素因数の和:95995

約数の個数: 24

約数和(自身を含む): 193370688

約数和(自身を除く): 111649404

約数列:

[1, 2, 3, 4, 6, 12, 71, 142, 213, 284, 426, 852, 95917, 191834, 287751, 383668, 575502, 1151004, 6810107, 13620214, 20430321, 27240428, 40860642, 81721284]

約数ペア:

[(1, 81721284), (2, 40860642), (3, 27240428), (4, 20430321), (6, 13620214), (12, 6810107), (71, 1151004), (142, 575502), (213, 383668), (284, 287751), (426, 191834), (852, 95917)]