2561013

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 4717440

約数和(自身を除く): 2156427

約数列:

[1, 3, 7, 9, 13, 21, 39, 53, 59, 63, 91, 117, 159, 177, 273, 371, 413, 477, 531, 689, 767, 819, 1113, 1239, 2067, 2301, 3127, 3339, 3717, 4823, 5369, 6201, 6903, 9381, 14469, 16107, 21889, 28143, 40651, 43407, 48321, 65667, 121953, 197001, 284557, 365859, 853671, 2561013]

約数ペア:

[(1, 2561013), (3, 853671), (7, 365859), (9, 284557), (13, 197001), (21, 121953), (39, 65667), (53, 48321), (59, 43407), (63, 40651), (91, 28143), (117, 21889), (159, 16107), (177, 14469), (273, 9381), (371, 6903), (413, 6201), (477, 5369), (531, 4823), (689, 3717), (767, 3339), (819, 3127), (1113, 2301), (1239, 2067)]