20681376

素因数分解:

$2^5\times 3^1\times {\mathrm{211}}^1\times {\mathrm{1021}}^1$

素因数の和:1245

約数の個数: 48

約数和(自身を含む): 54599328

約数和(自身を除く): 33917952

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 211, 422, 633, 844, 1021, 1266, 1688, 2042, 2532, 3063, 3376, 4084, 5064, 6126, 6752, 8168, 10128, 12252, 16336, 20256, 24504, 32672, 49008, 98016, 215431, 430862, 646293, 861724, 1292586, 1723448, 2585172, 3446896, 5170344, 6893792, 10340688, 20681376]

約数ペア:

[(1, 20681376), (2, 10340688), (3, 6893792), (4, 5170344), (6, 3446896), (8, 2585172), (12, 1723448), (16, 1292586), (24, 861724), (32, 646293), (48, 430862), (96, 215431), (211, 98016), (422, 49008), (633, 32672), (844, 24504), (1021, 20256), (1266, 16336), (1688, 12252), (2042, 10128), (2532, 8168), (3063, 6752), (3376, 6126), (4084, 5064)]