20399526

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{17989}}^1$

素因数の和:18010

約数の個数: 40

約数和(自身を含む): 52242960

約数和(自身を除く): 31843434

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 17989, 35978, 53967, 107934, 125923, 161901, 251846, 323802, 377769, 485703, 755538, 971406, 1133307, 1457109, 2266614, 2914218, 3399921, 6799842, 10199763, 20399526]

約数ペア:

[(1, 20399526), (2, 10199763), (3, 6799842), (6, 3399921), (7, 2914218), (9, 2266614), (14, 1457109), (18, 1133307), (21, 971406), (27, 755538), (42, 485703), (54, 377769), (63, 323802), (81, 251846), (126, 161901), (162, 125923), (189, 107934), (378, 53967), (567, 35978), (1134, 17989)]