20805216

素因数分解:

$2^5\times 3^1\times {\mathrm{31}}^1\times {\mathrm{6991}}^1$

素因数の和:7035

約数の個数: 48

約数和(自身を含む): 56383488

約数和(自身を除く): 35578272

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 93, 96, 124, 186, 248, 372, 496, 744, 992, 1488, 2976, 6991, 13982, 20973, 27964, 41946, 55928, 83892, 111856, 167784, 216721, 223712, 335568, 433442, 650163, 671136, 866884, 1300326, 1733768, 2600652, 3467536, 5201304, 6935072, 10402608, 20805216]

約数ペア:

[(1, 20805216), (2, 10402608), (3, 6935072), (4, 5201304), (6, 3467536), (8, 2600652), (12, 1733768), (16, 1300326), (24, 866884), (31, 671136), (32, 650163), (48, 433442), (62, 335568), (93, 223712), (96, 216721), (124, 167784), (186, 111856), (248, 83892), (372, 55928), (496, 41946), (744, 27964), (992, 20973), (1488, 13982), (2976, 6991)]