21045046

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 17258954

約数列:

[1, 2, 11, 19, 22, 23, 38, 46, 121, 199, 209, 242, 253, 398, 418, 437, 506, 874, 2189, 2299, 2783, 3781, 4378, 4577, 4598, 4807, 5566, 7562, 9154, 9614, 24079, 41591, 48158, 50347, 52877, 83182, 86963, 100694, 105754, 173926, 457501, 553817, 915002, 956593, 1107634, 1913186, 10522523, 21045046]

約数ペア:

[(1, 21045046), (2, 10522523), (11, 1913186), (19, 1107634), (22, 956593), (23, 915002), (38, 553817), (46, 457501), (121, 173926), (199, 105754), (209, 100694), (242, 86963), (253, 83182), (398, 52877), (418, 50347), (437, 48158), (506, 41591), (874, 24079), (2189, 9614), (2299, 9154), (2783, 7562), (3781, 5566), (4378, 4807), (4577, 4598)]