18355216

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:548

約数の個数: 60

約数和(自身を含む): 41230000

約数和(自身を除く): 22874784

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 121, 152, 176, 209, 242, 304, 418, 484, 499, 836, 968, 998, 1672, 1936, 1996, 2299, 3344, 3992, 4598, 5489, 7984, 9196, 9481, 10978, 18392, 18962, 21956, 36784, 37924, 43912, 60379, 75848, 87824, 104291, 120758, 151696, 208582, 241516, 417164, 483032, 834328, 966064, 1147201, 1668656, 2294402, 4588804, 9177608, 18355216]

約数ペア:

[(1, 18355216), (2, 9177608), (4, 4588804), (8, 2294402), (11, 1668656), (16, 1147201), (19, 966064), (22, 834328), (38, 483032), (44, 417164), (76, 241516), (88, 208582), (121, 151696), (152, 120758), (176, 104291), (209, 87824), (242, 75848), (304, 60379), (418, 43912), (484, 37924), (499, 36784), (836, 21956), (968, 18962), (998, 18392), (1672, 10978), (1936, 9481), (1996, 9196), (2299, 7984), (3344, 5489), (3992, 4598)]