71963217

素因数分解:

$3^2\times {\mathrm{109}}^2\times {\mathrm{673}}^1$

素因数の和:897

約数の個数: 18

約数和(自身を含む): 105065142

約数和(自身を除く): 33101925

約数列:

[1, 3, 9, 109, 327, 673, 981, 2019, 6057, 11881, 35643, 73357, 106929, 220071, 660213, 7995913, 23987739, 71963217]

約数ペア:

[(1, 71963217), (3, 23987739), (9, 7995913), (109, 660213), (327, 220071), (673, 106929), (981, 73357), (2019, 35643), (6057, 11881)]