21138216

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 60328800

約数和(自身を除く): 39190584

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 29, 33, 44, 58, 66, 87, 88, 116, 121, 132, 174, 232, 242, 251, 264, 319, 348, 363, 484, 502, 638, 696, 726, 753, 957, 968, 1004, 1276, 1452, 1506, 1914, 2008, 2552, 2761, 2904, 3012, 3509, 3828, 5522, 6024, 7018, 7279, 7656, 8283, 10527, 11044, 14036, 14558, 16566, 21054, 21837, 22088, 28072, 29116, 30371, 33132, 42108, 43674, 58232, 60742, 66264, 80069, 84216, 87348, 91113, 121484, 160138, 174696, 182226, 240207, 242968, 320276, 364452, 480414, 640552, 728904, 880759, 960828, 1761518, 1921656, 2642277, 3523036, 5284554, 7046072, 10569108, 21138216]

約数ペア:

[(1, 21138216), (2, 10569108), (3, 7046072), (4, 5284554), (6, 3523036), (8, 2642277), (11, 1921656), (12, 1761518), (22, 960828), (24, 880759), (29, 728904), (33, 640552), (44, 480414), (58, 364452), (66, 320276), (87, 242968), (88, 240207), (116, 182226), (121, 174696), (132, 160138), (174, 121484), (232, 91113), (242, 87348), (251, 84216), (264, 80069), (319, 66264), (348, 60742), (363, 58232), (484, 43674), (502, 42108), (638, 33132), (696, 30371), (726, 29116), (753, 28072), (957, 22088), (968, 21837), (1004, 21054), (1276, 16566), (1452, 14558), (1506, 14036), (1914, 11044), (2008, 10527), (2552, 8283), (2761, 7656), (2904, 7279), (3012, 7018), (3509, 6024), (3828, 5522)]