3929247

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1327}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 6629376

約数和(自身を除く): 2700129

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 1327, 2961, 3981, 9289, 11943, 27867, 62369, 83601, 187107, 436583, 561321, 1309749, 3929247]

約数ペア:

[(1, 3929247), (3, 1309749), (7, 561321), (9, 436583), (21, 187107), (47, 83601), (63, 62369), (141, 27867), (329, 11943), (423, 9289), (987, 3981), (1327, 2961)]