21375396

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{313}}^1$

素因数の和:601

約数の個数: 72

約数和(自身を含む): 62177024

約数和(自身を除く): 40801628

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 271, 313, 542, 626, 813, 939, 1084, 1252, 1626, 1878, 1897, 2191, 2439, 2817, 3252, 3756, 3794, 4382, 4878, 5634, 5691, 6573, 7588, 8764, 9756, 11268, 11382, 13146, 17073, 19719, 22764, 26292, 34146, 39438, 68292, 78876, 84823, 169646, 254469, 339292, 508938, 593761, 763407, 1017876, 1187522, 1526814, 1781283, 2375044, 3053628, 3562566, 5343849, 7125132, 10687698, 21375396]

約数ペア:

[(1, 21375396), (2, 10687698), (3, 7125132), (4, 5343849), (6, 3562566), (7, 3053628), (9, 2375044), (12, 1781283), (14, 1526814), (18, 1187522), (21, 1017876), (28, 763407), (36, 593761), (42, 508938), (63, 339292), (84, 254469), (126, 169646), (252, 84823), (271, 78876), (313, 68292), (542, 39438), (626, 34146), (813, 26292), (939, 22764), (1084, 19719), (1252, 17073), (1626, 13146), (1878, 11382), (1897, 11268), (2191, 9756), (2439, 8764), (2817, 7588), (3252, 6573), (3756, 5691), (3794, 5634), (4382, 4878)]