20991504

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23017}}^1$

素因数の和:23047

約数の個数: 40

約数和(自身を含む): 57084640

約数和(自身を除く): 36093136

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912, 23017, 46034, 69051, 92068, 138102, 184136, 276204, 368272, 437323, 552408, 874646, 1104816, 1311969, 1749292, 2623938, 3498584, 5247876, 6997168, 10495752, 20991504]

約数ペア:

[(1, 20991504), (2, 10495752), (3, 6997168), (4, 5247876), (6, 3498584), (8, 2623938), (12, 1749292), (16, 1311969), (19, 1104816), (24, 874646), (38, 552408), (48, 437323), (57, 368272), (76, 276204), (114, 184136), (152, 138102), (228, 92068), (304, 69051), (456, 46034), (912, 23017)]