20272959

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{823}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 37020672

約数和(自身を除く): 16747713

約数列:

[1, 3, 7, 9, 17, 21, 23, 51, 63, 69, 119, 153, 161, 207, 357, 391, 483, 823, 1071, 1173, 1449, 2469, 2737, 3519, 5761, 7407, 8211, 13991, 17283, 18929, 24633, 41973, 51849, 56787, 97937, 125919, 132503, 170361, 293811, 321793, 397509, 881433, 965379, 1192527, 2252551, 2896137, 6757653, 20272959]

約数ペア:

[(1, 20272959), (3, 6757653), (7, 2896137), (9, 2252551), (17, 1192527), (21, 965379), (23, 881433), (51, 397509), (63, 321793), (69, 293811), (119, 170361), (153, 132503), (161, 125919), (207, 97937), (357, 56787), (391, 51849), (483, 41973), (823, 24633), (1071, 18929), (1173, 17283), (1449, 13991), (2469, 8211), (2737, 7407), (3519, 5761)]