20834163

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:441

約数の個数: 48

約数和(自身を含む): 37252800

約数和(自身を除く): 16418637

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 343, 357, 397, 441, 833, 1029, 1071, 1191, 2499, 2779, 3087, 3573, 5831, 6749, 7497, 8337, 17493, 19453, 20247, 25011, 47243, 52479, 58359, 60741, 136171, 141729, 175077, 330701, 408513, 425187, 992103, 1225539, 2314907, 2976309, 6944721, 20834163]

約数ペア:

[(1, 20834163), (3, 6944721), (7, 2976309), (9, 2314907), (17, 1225539), (21, 992103), (49, 425187), (51, 408513), (63, 330701), (119, 175077), (147, 141729), (153, 136171), (343, 60741), (357, 58359), (397, 52479), (441, 47243), (833, 25011), (1029, 20247), (1071, 19453), (1191, 17493), (2499, 8337), (2779, 7497), (3087, 6749), (3573, 5831)]