20108151

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6791}}^1$

素因数の和:6851

約数の個数: 24

約数和(自身を含む): 33905664

約数和(自身を除く): 13797513

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6791, 20373, 47537, 61119, 142611, 319177, 427833, 957531, 2234239, 2872593, 6702717, 20108151]

約数ペア:

[(1, 20108151), (3, 6702717), (7, 2872593), (9, 2234239), (21, 957531), (47, 427833), (63, 319177), (141, 142611), (329, 61119), (423, 47537), (987, 20373), (2961, 6791)]