647356827

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{11831}}^1$

素因数の和:11931

約数の個数: 32

約数和(自身を含む): 985936896

約数和(自身を除く): 338580069

約数列:

[1, 3, 13, 23, 39, 61, 69, 183, 299, 793, 897, 1403, 2379, 4209, 11831, 18239, 35493, 54717, 153803, 272113, 461409, 721691, 816339, 2165073, 3537469, 9381983, 10612407, 16598893, 28145949, 49796679, 215785609, 647356827]

約数ペア:

[(1, 647356827), (3, 215785609), (13, 49796679), (23, 28145949), (39, 16598893), (61, 10612407), (69, 9381983), (183, 3537469), (299, 2165073), (793, 816339), (897, 721691), (1403, 461409), (2379, 272113), (4209, 153803), (11831, 54717), (18239, 35493)]