20207271

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 34401024

約数和(自身を除く): 14193753

約数列:

[1, 3, 7, 17, 21, 23, 51, 69, 107, 119, 161, 321, 357, 391, 483, 529, 749, 1173, 1587, 1819, 2247, 2461, 2737, 3703, 5457, 7383, 8211, 8993, 11109, 12733, 17227, 26979, 38199, 41837, 51681, 56603, 62951, 125511, 169809, 188853, 292859, 396221, 878577, 962251, 1188663, 2886753, 6735757, 20207271]

約数ペア:

[(1, 20207271), (3, 6735757), (7, 2886753), (17, 1188663), (21, 962251), (23, 878577), (51, 396221), (69, 292859), (107, 188853), (119, 169809), (161, 125511), (321, 62951), (357, 56603), (391, 51681), (483, 41837), (529, 38199), (749, 26979), (1173, 17227), (1587, 12733), (1819, 11109), (2247, 8993), (2461, 8211), (2737, 7383), (3703, 5457)]