1971790247

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^2\times {\mathrm{1319}}^1$

素因数の和:1523

約数の個数: 24

約数和(自身を含む): 2356316160

約数和(自身を除く): 384525913

約数列:

[1, 7, 31, 83, 217, 581, 1319, 2573, 6889, 9233, 18011, 40889, 48223, 109477, 213559, 286223, 766339, 1494913, 3393787, 9086591, 23756509, 63606137, 281684321, 1971790247]

約数ペア:

[(1, 1971790247), (7, 281684321), (31, 63606137), (83, 23756509), (217, 9086591), (581, 3393787), (1319, 1494913), (2573, 766339), (6889, 286223), (9233, 213559), (18011, 109477), (40889, 48223)]