28811601

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 51810304

約数和(自身を除く): 22998703

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 127, 273, 277, 381, 819, 831, 889, 1143, 1651, 1939, 2493, 2667, 3601, 4953, 5817, 8001, 10803, 11557, 14859, 17451, 25207, 32409, 34671, 35179, 75621, 104013, 105537, 226863, 246253, 316611, 457327, 738759, 1371981, 2216277, 3201289, 4115943, 9603867, 28811601]

約数ペア:

[(1, 28811601), (3, 9603867), (7, 4115943), (9, 3201289), (13, 2216277), (21, 1371981), (39, 738759), (63, 457327), (91, 316611), (117, 246253), (127, 226863), (273, 105537), (277, 104013), (381, 75621), (819, 35179), (831, 34671), (889, 32409), (1143, 25207), (1651, 17451), (1939, 14859), (2493, 11557), (2667, 10803), (3601, 8001), (4953, 5817)]