15636621

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 28901376

約数和(自身を除く): 13264755

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 41, 77, 91, 123, 127, 143, 231, 273, 287, 381, 429, 451, 533, 861, 889, 1001, 1353, 1397, 1599, 1651, 2667, 3003, 3157, 3731, 4191, 4953, 5207, 5863, 9471, 9779, 11193, 11557, 15621, 17589, 18161, 29337, 34671, 36449, 41041, 54483, 57277, 67691, 109347, 123123, 127127, 171831, 203073, 381381, 400939, 473837, 744601, 1202817, 1421511, 2233803, 5212207, 15636621]

約数ペア:

[(1, 15636621), (3, 5212207), (7, 2233803), (11, 1421511), (13, 1202817), (21, 744601), (33, 473837), (39, 400939), (41, 381381), (77, 203073), (91, 171831), (123, 127127), (127, 123123), (143, 109347), (231, 67691), (273, 57277), (287, 54483), (381, 41041), (429, 36449), (451, 34671), (533, 29337), (861, 18161), (889, 17589), (1001, 15621), (1353, 11557), (1397, 11193), (1599, 9779), (1651, 9471), (2667, 5863), (3003, 5207), (3157, 4953), (3731, 4191)]