21009144

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{233}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 60343920

約数和(自身を除く): 39334776

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 204, 221, 233, 289, 312, 408, 442, 466, 578, 663, 699, 867, 884, 932, 1156, 1326, 1398, 1734, 1768, 1864, 2312, 2652, 2796, 3029, 3468, 3757, 3961, 5304, 5592, 6058, 6936, 7514, 7922, 9087, 11271, 11883, 12116, 15028, 15844, 18174, 22542, 23766, 24232, 30056, 31688, 36348, 45084, 47532, 51493, 67337, 72696, 90168, 95064, 102986, 134674, 154479, 202011, 205972, 269348, 308958, 404022, 411944, 538696, 617916, 808044, 875381, 1235832, 1616088, 1750762, 2626143, 3501524, 5252286, 7003048, 10504572, 21009144]

約数ペア:

[(1, 21009144), (2, 10504572), (3, 7003048), (4, 5252286), (6, 3501524), (8, 2626143), (12, 1750762), (13, 1616088), (17, 1235832), (24, 875381), (26, 808044), (34, 617916), (39, 538696), (51, 411944), (52, 404022), (68, 308958), (78, 269348), (102, 205972), (104, 202011), (136, 154479), (156, 134674), (204, 102986), (221, 95064), (233, 90168), (289, 72696), (312, 67337), (408, 51493), (442, 47532), (466, 45084), (578, 36348), (663, 31688), (699, 30056), (867, 24232), (884, 23766), (932, 22542), (1156, 18174), (1326, 15844), (1398, 15028), (1734, 12116), (1768, 11883), (1864, 11271), (2312, 9087), (2652, 7922), (2796, 7514), (3029, 6936), (3468, 6058), (3757, 5592), (3961, 5304)]