18808936

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 22015064

約数列:

[1, 2, 4, 8, 17, 19, 29, 34, 38, 58, 68, 76, 116, 136, 152, 232, 251, 323, 493, 502, 551, 646, 986, 1004, 1102, 1292, 1972, 2008, 2204, 2584, 3944, 4267, 4408, 4769, 7279, 8534, 9367, 9538, 14558, 17068, 18734, 19076, 29116, 34136, 37468, 38152, 58232, 74936, 81073, 123743, 138301, 162146, 247486, 276602, 324292, 494972, 553204, 648584, 989944, 1106408, 2351117, 4702234, 9404468, 18808936]

約数ペア:

[(1, 18808936), (2, 9404468), (4, 4702234), (8, 2351117), (17, 1106408), (19, 989944), (29, 648584), (34, 553204), (38, 494972), (58, 324292), (68, 276602), (76, 247486), (116, 162146), (136, 138301), (152, 123743), (232, 81073), (251, 74936), (323, 58232), (493, 38152), (502, 37468), (551, 34136), (646, 29116), (986, 19076), (1004, 18734), (1102, 17068), (1292, 14558), (1972, 9538), (2008, 9367), (2204, 8534), (2584, 7279), (3944, 4769), (4267, 4408)]