20481426

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3067}}^1$

素因数の和:3135

約数の個数: 48

約数和(自身を含む): 51689664

約数和(自身を除く): 31208238

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 53, 63, 106, 126, 159, 318, 371, 477, 742, 954, 1113, 2226, 3067, 3339, 6134, 6678, 9201, 18402, 21469, 27603, 42938, 55206, 64407, 128814, 162551, 193221, 325102, 386442, 487653, 975306, 1137857, 1462959, 2275714, 2925918, 3413571, 6827142, 10240713, 20481426]

約数ペア:

[(1, 20481426), (2, 10240713), (3, 6827142), (6, 3413571), (7, 2925918), (9, 2275714), (14, 1462959), (18, 1137857), (21, 975306), (42, 487653), (53, 386442), (63, 325102), (106, 193221), (126, 162551), (159, 128814), (318, 64407), (371, 55206), (477, 42938), (742, 27603), (954, 21469), (1113, 18402), (2226, 9201), (3067, 6678), (3339, 6134)]