21290868

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1831}}^1$

素因数の和:1877

約数の個数: 72

約数和(自身を含む): 60016320

約数和(自身を除く): 38725452

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 34, 36, 38, 51, 57, 68, 76, 102, 114, 153, 171, 204, 228, 306, 323, 342, 612, 646, 684, 969, 1292, 1831, 1938, 2907, 3662, 3876, 5493, 5814, 7324, 10986, 11628, 16479, 21972, 31127, 32958, 34789, 62254, 65916, 69578, 93381, 104367, 124508, 139156, 186762, 208734, 280143, 313101, 373524, 417468, 560286, 591413, 626202, 1120572, 1182826, 1252404, 1774239, 2365652, 3548478, 5322717, 7096956, 10645434, 21290868]

約数ペア:

[(1, 21290868), (2, 10645434), (3, 7096956), (4, 5322717), (6, 3548478), (9, 2365652), (12, 1774239), (17, 1252404), (18, 1182826), (19, 1120572), (34, 626202), (36, 591413), (38, 560286), (51, 417468), (57, 373524), (68, 313101), (76, 280143), (102, 208734), (114, 186762), (153, 139156), (171, 124508), (204, 104367), (228, 93381), (306, 69578), (323, 65916), (342, 62254), (612, 34789), (646, 32958), (684, 31127), (969, 21972), (1292, 16479), (1831, 11628), (1938, 10986), (2907, 7324), (3662, 5814), (3876, 5493)]