221690931

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{56453}}^1$

素因数の和:56491

約数の個数: 32

約数和(自身を含む): 390210048

約数和(自身を除く): 168519117

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 56453, 169359, 395171, 620983, 959701, 1185513, 1862949, 2879103, 4346881, 6717907, 10556711, 13040643, 20153721, 31670133, 73896977, 221690931]

約数ペア:

[(1, 221690931), (3, 73896977), (7, 31670133), (11, 20153721), (17, 13040643), (21, 10556711), (33, 6717907), (51, 4346881), (77, 2879103), (119, 1862949), (187, 1185513), (231, 959701), (357, 620983), (561, 395171), (1309, 169359), (3927, 56453)]