18985554

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2843}}^1$

素因数の和:2911

約数の個数: 48

約数和(自身を含む): 47915712

約数和(自身を除く): 28930158

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 53, 63, 106, 126, 159, 318, 371, 477, 742, 954, 1113, 2226, 2843, 3339, 5686, 6678, 8529, 17058, 19901, 25587, 39802, 51174, 59703, 119406, 150679, 179109, 301358, 358218, 452037, 904074, 1054753, 1356111, 2109506, 2712222, 3164259, 6328518, 9492777, 18985554]

約数ペア:

[(1, 18985554), (2, 9492777), (3, 6328518), (6, 3164259), (7, 2712222), (9, 2109506), (14, 1356111), (18, 1054753), (21, 904074), (42, 452037), (53, 358218), (63, 301358), (106, 179109), (126, 150679), (159, 119406), (318, 59703), (371, 51174), (477, 39802), (742, 25587), (954, 19901), (1113, 17058), (2226, 8529), (2843, 6678), (3339, 5686)]