18790816

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:266

約数の個数: 72

約数和(自身を含む): 42632352

約数和(自身を除く): 23841536

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 88, 92, 121, 176, 184, 211, 242, 253, 352, 368, 422, 484, 506, 736, 844, 968, 1012, 1688, 1936, 2024, 2321, 2783, 3376, 3872, 4048, 4642, 4853, 5566, 6752, 8096, 9284, 9706, 11132, 18568, 19412, 22264, 25531, 37136, 38824, 44528, 51062, 53383, 74272, 77648, 89056, 102124, 106766, 155296, 204248, 213532, 408496, 427064, 587213, 816992, 854128, 1174426, 1708256, 2348852, 4697704, 9395408, 18790816]

約数ペア:

[(1, 18790816), (2, 9395408), (4, 4697704), (8, 2348852), (11, 1708256), (16, 1174426), (22, 854128), (23, 816992), (32, 587213), (44, 427064), (46, 408496), (88, 213532), (92, 204248), (121, 155296), (176, 106766), (184, 102124), (211, 89056), (242, 77648), (253, 74272), (352, 53383), (368, 51062), (422, 44528), (484, 38824), (506, 37136), (736, 25531), (844, 22264), (968, 19412), (1012, 18568), (1688, 11132), (1936, 9706), (2024, 9284), (2321, 8096), (2783, 6752), (3376, 5566), (3872, 4853), (4048, 4642)]