20921242

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{5051}}^1$

素因数の和:5181

約数の個数: 16

約数和(自身を含む): 33343200

約数和(自身を除く): 12421958

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 5051, 10102, 95969, 191938, 550559, 1101118, 10460621, 20921242]

約数ペア:

[(1, 20921242), (2, 10460621), (19, 1101118), (38, 550559), (109, 191938), (218, 95969), (2071, 10102), (4142, 5051)]