1971520803

素因数分解:

$3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{80863}}^1$

素因数の和:80925

約数の個数: 40

約数和(自身を含む): 3444159488

約数和(自身を除く): 1472638685

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 129, 189, 301, 387, 567, 903, 1161, 2709, 3483, 8127, 24381, 80863, 242589, 566041, 727767, 1698123, 2183301, 3477109, 5094369, 6549903, 10431327, 15283107, 24339763, 31293981, 45849321, 73019289, 93881943, 219057867, 281645829, 657173601, 1971520803]

約数ペア:

[(1, 1971520803), (3, 657173601), (7, 281645829), (9, 219057867), (21, 93881943), (27, 73019289), (43, 45849321), (63, 31293981), (81, 24339763), (129, 15283107), (189, 10431327), (301, 6549903), (387, 5094369), (567, 3477109), (903, 2183301), (1161, 1698123), (2709, 727767), (3483, 566041), (8127, 242589), (24381, 80863)]