20937268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1217}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 44198784

約数和(自身を除く): 23261516

約数列:

[1, 2, 4, 11, 17, 22, 23, 34, 44, 46, 68, 92, 187, 253, 374, 391, 506, 748, 782, 1012, 1217, 1564, 2434, 4301, 4868, 8602, 13387, 17204, 20689, 26774, 27991, 41378, 53548, 55982, 82756, 111964, 227579, 307901, 455158, 475847, 615802, 910316, 951694, 1231604, 1903388, 5234317, 10468634, 20937268]

約数ペア:

[(1, 20937268), (2, 10468634), (4, 5234317), (11, 1903388), (17, 1231604), (22, 951694), (23, 910316), (34, 615802), (44, 475847), (46, 455158), (68, 307901), (92, 227579), (187, 111964), (253, 82756), (374, 55982), (391, 53548), (506, 41378), (748, 27991), (782, 26774), (1012, 20689), (1217, 17204), (1564, 13387), (2434, 8602), (4301, 4868)]