21381337404

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{313087}}^1$

素因数の和:313375

約数の個数: 72

約数和(自身を含む): 61996433408

約数和(自身を除く): 40615096004

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 271, 542, 813, 1084, 1626, 1897, 2439, 3252, 3794, 4878, 5691, 7588, 9756, 11382, 17073, 22764, 34146, 68292, 313087, 626174, 939261, 1252348, 1878522, 2191609, 2817783, 3757044, 4383218, 5635566, 6574827, 8766436, 11271132, 13149654, 19724481, 26299308, 39448962, 78897924, 84846577, 169693154, 254539731, 339386308, 509079462, 593926039, 763619193, 1018158924, 1187852078, 1527238386, 1781778117, 2375704156, 3054476772, 3563556234, 5345334351, 7127112468, 10690668702, 21381337404]

約数ペア:

[(1, 21381337404), (2, 10690668702), (3, 7127112468), (4, 5345334351), (6, 3563556234), (7, 3054476772), (9, 2375704156), (12, 1781778117), (14, 1527238386), (18, 1187852078), (21, 1018158924), (28, 763619193), (36, 593926039), (42, 509079462), (63, 339386308), (84, 254539731), (126, 169693154), (252, 84846577), (271, 78897924), (542, 39448962), (813, 26299308), (1084, 19724481), (1626, 13149654), (1897, 11271132), (2439, 8766436), (3252, 6574827), (3794, 5635566), (4878, 4383218), (5691, 3757044), (7588, 2817783), (9756, 2191609), (11382, 1878522), (17073, 1252348), (22764, 939261), (34146, 626174), (68292, 313087)]