1216782021

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{13799}}^1$

素因数の和:13858

約数の個数: 64

約数和(自身を含む): 2225664000

約数和(自身を除く): 1008881979

約数列:

[1, 3, 7, 13, 17, 19, 21, 39, 51, 57, 91, 119, 133, 221, 247, 273, 323, 357, 399, 663, 741, 969, 1547, 1729, 2261, 4199, 4641, 5187, 6783, 12597, 13799, 29393, 41397, 88179, 96593, 179387, 234583, 262181, 289779, 538161, 703749, 786543, 1255709, 1642081, 1835267, 3049579, 3408353, 3767127, 4457077, 4926243, 5505801, 9148737, 10225059, 13371231, 21347053, 23858471, 31199539, 57942001, 64041159, 71575413, 93598617, 173826003, 405594007, 1216782021]

約数ペア:

[(1, 1216782021), (3, 405594007), (7, 173826003), (13, 93598617), (17, 71575413), (19, 64041159), (21, 57942001), (39, 31199539), (51, 23858471), (57, 21347053), (91, 13371231), (119, 10225059), (133, 9148737), (221, 5505801), (247, 4926243), (273, 4457077), (323, 3767127), (357, 3408353), (399, 3049579), (663, 1835267), (741, 1642081), (969, 1255709), (1547, 786543), (1729, 703749), (2261, 538161), (4199, 289779), (4641, 262181), (5187, 234583), (6783, 179387), (12597, 96593), (13799, 88179), (29393, 41397)]