20279421

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 30095520

約数和(自身を除く): 9816099

約数列:

[1, 3, 9, 59, 177, 181, 211, 531, 543, 633, 1629, 1899, 10679, 12449, 32037, 37347, 38191, 96111, 112041, 114573, 343719, 2253269, 6759807, 20279421]

約数ペア:

[(1, 20279421), (3, 6759807), (9, 2253269), (59, 343719), (177, 114573), (181, 112041), (211, 96111), (531, 38191), (543, 37347), (633, 32037), (1629, 12449), (1899, 10679)]