18188492

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 38664192

約数和(自身を除く): 20475700

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 61, 92, 122, 161, 244, 322, 427, 463, 644, 854, 926, 1403, 1708, 1852, 2806, 3241, 5612, 6482, 9821, 10649, 12964, 19642, 21298, 28243, 39284, 42596, 56486, 74543, 112972, 149086, 197701, 298172, 395402, 649589, 790804, 1299178, 2598356, 4547123, 9094246, 18188492]

約数ペア:

[(1, 18188492), (2, 9094246), (4, 4547123), (7, 2598356), (14, 1299178), (23, 790804), (28, 649589), (46, 395402), (61, 298172), (92, 197701), (122, 149086), (161, 112972), (244, 74543), (322, 56486), (427, 42596), (463, 39284), (644, 28243), (854, 21298), (926, 19642), (1403, 12964), (1708, 10649), (1852, 9821), (2806, 6482), (3241, 5612)]