20758437

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1181}}^1$

素因数の和:1231

約数の個数: 40

約数和(自身を含む): 36613632

約数和(自身を除く): 15855195

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 279, 567, 651, 837, 1181, 1953, 2511, 3543, 5859, 8267, 10629, 17577, 24801, 31887, 36611, 74403, 95661, 109833, 223209, 256277, 329499, 669627, 768831, 988497, 2306493, 2965491, 6919479, 20758437]

約数ペア:

[(1, 20758437), (3, 6919479), (7, 2965491), (9, 2306493), (21, 988497), (27, 768831), (31, 669627), (63, 329499), (81, 256277), (93, 223209), (189, 109833), (217, 95661), (279, 74403), (567, 36611), (651, 31887), (837, 24801), (1181, 17577), (1953, 10629), (2511, 8267), (3543, 5859)]