31811073

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1307}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 51901440

約数和(自身を除く): 20090367

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 1159, 1281, 1307, 3477, 3921, 8113, 9149, 24339, 24833, 27447, 74499, 79727, 173831, 239181, 521493, 558089, 1514813, 1674267, 4544439, 10603691, 31811073]

約数ペア:

[(1, 31811073), (3, 10603691), (7, 4544439), (19, 1674267), (21, 1514813), (57, 558089), (61, 521493), (133, 239181), (183, 173831), (399, 79727), (427, 74499), (1159, 27447), (1281, 24833), (1307, 24339), (3477, 9149), (3921, 8113)]