18913268

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1699}}^1$

素因数の和:1748

約数の個数: 36

約数和(自身を含む): 37984800

約数和(自身を除く): 19071532

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 242, 253, 484, 506, 1012, 1699, 2783, 3398, 5566, 6796, 11132, 18689, 37378, 39077, 74756, 78154, 156308, 205579, 411158, 429847, 822316, 859694, 1719388, 4728317, 9456634, 18913268]

約数ペア:

[(1, 18913268), (2, 9456634), (4, 4728317), (11, 1719388), (22, 859694), (23, 822316), (44, 429847), (46, 411158), (92, 205579), (121, 156308), (242, 78154), (253, 74756), (484, 39077), (506, 37378), (1012, 18689), (1699, 11132), (2783, 6796), (3398, 5566)]