20521072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8969}}^1$

素因数の和:9001

約数の個数: 40

約数和(自身を含む): 46715760

約数和(自身を除く): 26194688

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8969, 17938, 35876, 71752, 98659, 116597, 143504, 197318, 233194, 394636, 466388, 789272, 932776, 1282567, 1578544, 1865552, 2565134, 5130268, 10260536, 20521072]

約数ペア:

[(1, 20521072), (2, 10260536), (4, 5130268), (8, 2565134), (11, 1865552), (13, 1578544), (16, 1282567), (22, 932776), (26, 789272), (44, 466388), (52, 394636), (88, 233194), (104, 197318), (143, 143504), (176, 116597), (208, 98659), (286, 71752), (572, 35876), (1144, 17938), (2288, 8969)]