42272853

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1999}}^1$

素因数の和:2081

約数の個数: 32

約数和(自身を含む): 69120000

約数和(自身を除く): 26847147

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 1999, 3021, 5997, 7049, 13993, 21147, 37981, 41979, 105947, 113943, 265867, 317841, 741629, 797601, 2012993, 2224887, 6038979, 14090951, 42272853]

約数ペア:

[(1, 42272853), (3, 14090951), (7, 6038979), (19, 2224887), (21, 2012993), (53, 797601), (57, 741629), (133, 317841), (159, 265867), (371, 113943), (399, 105947), (1007, 41979), (1113, 37981), (1999, 21147), (3021, 13993), (5997, 7049)]