20589723

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 38895584

約数和(自身を除く): 18305861

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 63, 73, 77, 99, 111, 121, 219, 231, 259, 333, 363, 407, 511, 657, 693, 777, 803, 847, 1089, 1221, 1533, 2331, 2409, 2541, 2701, 2849, 3663, 4477, 4599, 5621, 7227, 7623, 8103, 8547, 8833, 13431, 16863, 18907, 24309, 25641, 26499, 29711, 31339, 40293, 50589, 56721, 61831, 79497, 89133, 94017, 170163, 185493, 207977, 267399, 282051, 326821, 556479, 623931, 980463, 1871793, 2287747, 2941389, 6863241, 20589723]

約数ペア:

[(1, 20589723), (3, 6863241), (7, 2941389), (9, 2287747), (11, 1871793), (21, 980463), (33, 623931), (37, 556479), (63, 326821), (73, 282051), (77, 267399), (99, 207977), (111, 185493), (121, 170163), (219, 94017), (231, 89133), (259, 79497), (333, 61831), (363, 56721), (407, 50589), (511, 40293), (657, 31339), (693, 29711), (777, 26499), (803, 25641), (847, 24309), (1089, 18907), (1221, 16863), (1533, 13431), (2331, 8833), (2409, 8547), (2541, 8103), (2701, 7623), (2849, 7227), (3663, 5621), (4477, 4599)]