21610281

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5503}}^1$

素因数の和:5541

約数の個数: 32

約数和(自身を含む): 38043648

約数和(自身を除く): 16433367

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 5503, 16509, 38521, 60533, 93551, 115563, 181599, 280653, 423731, 654857, 1029061, 1271193, 1964571, 3087183, 7203427, 21610281]

約数ペア:

[(1, 21610281), (3, 7203427), (7, 3087183), (11, 1964571), (17, 1271193), (21, 1029061), (33, 654857), (51, 423731), (77, 280653), (119, 181599), (187, 115563), (231, 93551), (357, 60533), (561, 38521), (1309, 16509), (3927, 5503)]