21772421

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1831}}^1$

素因数の和:1912

約数の個数: 16

約数和(自身を含む): 25325568

約数和(自身を除く): 3553147

約数列:

[1, 11, 23, 47, 253, 517, 1081, 1831, 11891, 20141, 42113, 86057, 463243, 946627, 1979311, 21772421]

約数ペア:

[(1, 21772421), (11, 1979311), (23, 946627), (47, 463243), (253, 86057), (517, 42113), (1081, 20141), (1831, 11891)]