21159996

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 62563200

約数和(自身を除く): 41403204

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 19, 22, 26, 33, 38, 39, 44, 52, 57, 59, 66, 76, 78, 114, 118, 121, 132, 143, 156, 177, 209, 228, 236, 242, 247, 286, 354, 363, 418, 429, 484, 494, 572, 627, 649, 708, 726, 741, 767, 836, 858, 988, 1121, 1254, 1298, 1452, 1482, 1534, 1573, 1716, 1947, 2242, 2299, 2301, 2508, 2596, 2717, 2964, 3068, 3146, 3363, 3894, 4484, 4598, 4602, 4719, 5434, 6292, 6726, 6897, 7139, 7788, 8151, 8437, 9196, 9204, 9438, 10868, 12331, 13452, 13794, 14278, 14573, 16302, 16874, 18876, 21417, 24662, 25311, 27588, 28556, 29146, 29887, 32604, 33748, 36993, 42834, 43719, 49324, 50622, 58292, 59774, 73986, 85668, 87438, 89661, 92807, 101244, 119548, 135641, 147972, 160303, 174876, 179322, 185614, 271282, 278421, 320606, 358644, 371228, 406923, 480909, 542564, 556842, 641212, 813846, 961818, 1113684, 1627692, 1763333, 1923636, 3526666, 5289999, 7053332, 10579998, 21159996]

約数ペア:

[(1, 21159996), (2, 10579998), (3, 7053332), (4, 5289999), (6, 3526666), (11, 1923636), (12, 1763333), (13, 1627692), (19, 1113684), (22, 961818), (26, 813846), (33, 641212), (38, 556842), (39, 542564), (44, 480909), (52, 406923), (57, 371228), (59, 358644), (66, 320606), (76, 278421), (78, 271282), (114, 185614), (118, 179322), (121, 174876), (132, 160303), (143, 147972), (156, 135641), (177, 119548), (209, 101244), (228, 92807), (236, 89661), (242, 87438), (247, 85668), (286, 73986), (354, 59774), (363, 58292), (418, 50622), (429, 49324), (484, 43719), (494, 42834), (572, 36993), (627, 33748), (649, 32604), (708, 29887), (726, 29146), (741, 28556), (767, 27588), (836, 25311), (858, 24662), (988, 21417), (1121, 18876), (1254, 16874), (1298, 16302), (1452, 14573), (1482, 14278), (1534, 13794), (1573, 13452), (1716, 12331), (1947, 10868), (2242, 9438), (2299, 9204), (2301, 9196), (2508, 8437), (2596, 8151), (2717, 7788), (2964, 7139), (3068, 6897), (3146, 6726), (3363, 6292), (3894, 5434), (4484, 4719), (4598, 4602)]