21281799

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{509}}^1$

素因数の和:711

約数の個数: 32

約数和(自身を含む): 35642880

約数和(自身を除く): 14361081

約数列:

[1, 3, 7, 11, 21, 33, 77, 181, 231, 509, 543, 1267, 1527, 1991, 3563, 3801, 5599, 5973, 10689, 13937, 16797, 39193, 41811, 92129, 117579, 276387, 644903, 1013419, 1934709, 3040257, 7093933, 21281799]

約数ペア:

[(1, 21281799), (3, 7093933), (7, 3040257), (11, 1934709), (21, 1013419), (33, 644903), (77, 276387), (181, 117579), (231, 92129), (509, 41811), (543, 39193), (1267, 16797), (1527, 13937), (1991, 10689), (3563, 5973), (3801, 5599)]