19898823

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 32417280

約数和(自身を除く): 12518457

約数列:

[1, 3, 7, 17, 21, 51, 119, 139, 357, 401, 417, 973, 1203, 2363, 2807, 2919, 6817, 7089, 8421, 16541, 20451, 47719, 49623, 55739, 143157, 167217, 390173, 947563, 1170519, 2842689, 6632941, 19898823]

約数ペア:

[(1, 19898823), (3, 6632941), (7, 2842689), (17, 1170519), (21, 947563), (51, 390173), (119, 167217), (139, 143157), (357, 55739), (401, 49623), (417, 47719), (973, 20451), (1203, 16541), (2363, 8421), (2807, 7089), (2919, 6817)]