20988126

素因数分解:

$2^1\times 3^3\times {\mathrm{137}}^1\times {\mathrm{2837}}^1$

素因数の和:2985

約数の個数: 32

約数和(自身を含む): 46997280

約数和(自身を除く): 26009154

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 137, 274, 411, 822, 1233, 2466, 2837, 3699, 5674, 7398, 8511, 17022, 25533, 51066, 76599, 153198, 388669, 777338, 1166007, 2332014, 3498021, 6996042, 10494063, 20988126]

約数ペア:

[(1, 20988126), (2, 10494063), (3, 6996042), (6, 3498021), (9, 2332014), (18, 1166007), (27, 777338), (54, 388669), (137, 153198), (274, 76599), (411, 51066), (822, 25533), (1233, 17022), (2466, 8511), (2837, 7398), (3699, 5674)]