20851804239

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52260161}}^1$

素因数の和:52260190

約数の個数: 16

約数和(自身を含む): 33446503680

約数和(自身を除く): 12594699441

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 52260161, 156780483, 365821127, 992943059, 1097463381, 2978829177, 6950601413, 20851804239]

約数ペア:

[(1, 20851804239), (3, 6950601413), (7, 2978829177), (19, 1097463381), (21, 992943059), (57, 365821127), (133, 156780483), (399, 52260161)]