18964407

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1549}}^1$

素因数の和:1623

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 13176393

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 159, 231, 371, 583, 1113, 1549, 1749, 4081, 4647, 10843, 12243, 17039, 32529, 51117, 82097, 119273, 246291, 357819, 574679, 903067, 1724037, 2709201, 6321469, 18964407]

約数ペア:

[(1, 18964407), (3, 6321469), (7, 2709201), (11, 1724037), (21, 903067), (33, 574679), (53, 357819), (77, 246291), (159, 119273), (231, 82097), (371, 51117), (583, 32529), (1113, 17039), (1549, 12243), (1749, 10843), (4081, 4647)]