20793771

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 35043840

約数和(自身を除く): 14250069

約数列:

[1, 3, 9, 17, 19, 23, 51, 57, 69, 153, 171, 207, 311, 323, 391, 437, 933, 969, 1173, 1311, 2799, 2907, 3519, 3933, 5287, 5909, 7153, 7429, 15861, 17727, 21459, 22287, 47583, 53181, 64377, 66861, 100453, 121601, 135907, 301359, 364803, 407721, 904077, 1094409, 1223163, 2310419, 6931257, 20793771]

約数ペア:

[(1, 20793771), (3, 6931257), (9, 2310419), (17, 1223163), (19, 1094409), (23, 904077), (51, 407721), (57, 364803), (69, 301359), (153, 135907), (171, 121601), (207, 100453), (311, 66861), (323, 64377), (391, 53181), (437, 47583), (933, 22287), (969, 21459), (1173, 17727), (1311, 15861), (2799, 7429), (2907, 7153), (3519, 5909), (3933, 5287)]