20516314

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 21819686

約数列:

[1, 2, 7, 13, 14, 17, 19, 26, 34, 38, 91, 119, 133, 182, 221, 238, 247, 266, 323, 349, 442, 494, 646, 698, 1547, 1729, 2261, 2443, 3094, 3458, 4199, 4522, 4537, 4886, 5933, 6631, 8398, 9074, 11866, 13262, 29393, 31759, 41531, 46417, 58786, 63518, 77129, 83062, 86203, 92834, 112727, 154258, 172406, 225454, 539903, 603421, 789089, 1079806, 1206842, 1465451, 1578178, 2930902, 10258157, 20516314]

約数ペア:

[(1, 20516314), (2, 10258157), (7, 2930902), (13, 1578178), (14, 1465451), (17, 1206842), (19, 1079806), (26, 789089), (34, 603421), (38, 539903), (91, 225454), (119, 172406), (133, 154258), (182, 112727), (221, 92834), (238, 86203), (247, 83062), (266, 77129), (323, 63518), (349, 58786), (442, 46417), (494, 41531), (646, 31759), (698, 29393), (1547, 13262), (1729, 11866), (2261, 9074), (2443, 8398), (3094, 6631), (3458, 5933), (4199, 4886), (4522, 4537)]