20581218

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8597}}^1$

素因数の和:8631

約数の個数: 48

約数和(自身を含む): 53651520

約数和(自身を除く): 33070302

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 399, 798, 1197, 2394, 8597, 17194, 25791, 51582, 60179, 77373, 120358, 154746, 163343, 180537, 326686, 361074, 490029, 541611, 980058, 1083222, 1143401, 1470087, 2286802, 2940174, 3430203, 6860406, 10290609, 20581218]

約数ペア:

[(1, 20581218), (2, 10290609), (3, 6860406), (6, 3430203), (7, 2940174), (9, 2286802), (14, 1470087), (18, 1143401), (19, 1083222), (21, 980058), (38, 541611), (42, 490029), (57, 361074), (63, 326686), (114, 180537), (126, 163343), (133, 154746), (171, 120358), (266, 77373), (342, 60179), (399, 51582), (798, 25791), (1197, 17194), (2394, 8597)]