21281348

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1237}}^1$

素因数の和:1292

約数の個数: 48

約数和(自身を含む): 44924544

約数和(自身を除く): 23643196

約数列:

[1, 2, 4, 11, 17, 22, 23, 34, 44, 46, 68, 92, 187, 253, 374, 391, 506, 748, 782, 1012, 1237, 1564, 2474, 4301, 4948, 8602, 13607, 17204, 21029, 27214, 28451, 42058, 54428, 56902, 84116, 113804, 231319, 312961, 462638, 483667, 625922, 925276, 967334, 1251844, 1934668, 5320337, 10640674, 21281348]

約数ペア:

[(1, 21281348), (2, 10640674), (4, 5320337), (11, 1934668), (17, 1251844), (22, 967334), (23, 925276), (34, 625922), (44, 483667), (46, 462638), (68, 312961), (92, 231319), (187, 113804), (253, 84116), (374, 56902), (391, 54428), (506, 42058), (748, 28451), (782, 27214), (1012, 21029), (1237, 17204), (1564, 13607), (2474, 8602), (4301, 4948)]