20785667903

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{449}}^2$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 28241880576

約数和(自身を除く): 7456212673

約数列:

[1, 7, 11, 13, 77, 91, 103, 143, 449, 721, 1001, 1133, 1339, 3143, 4939, 5837, 7931, 9373, 14729, 34573, 40859, 46247, 64207, 103103, 201601, 323729, 449449, 508717, 601211, 1411207, 2217611, 2620813, 3561019, 4208477, 6613321, 15523277, 18345691, 20764903, 28828943, 46293247, 145354321, 201802601, 228413933, 269943739, 1598897531, 1889606173, 2969381129, 20785667903]

約数ペア:

[(1, 20785667903), (7, 2969381129), (11, 1889606173), (13, 1598897531), (77, 269943739), (91, 228413933), (103, 201802601), (143, 145354321), (449, 46293247), (721, 28828943), (1001, 20764903), (1133, 18345691), (1339, 15523277), (3143, 6613321), (4939, 4208477), (5837, 3561019), (7931, 2620813), (9373, 2217611), (14729, 1411207), (34573, 601211), (40859, 508717), (46247, 449449), (64207, 323729), (103103, 201601)]