1638819

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:81

約数の個数: 64

約数和(自身を含む): 3225600

約数和(自身を除く): 1586781

約数列:

[1, 3, 7, 9, 13, 21, 23, 27, 29, 39, 63, 69, 87, 91, 117, 161, 189, 203, 207, 261, 273, 299, 351, 377, 483, 609, 621, 667, 783, 819, 897, 1131, 1449, 1827, 2001, 2093, 2457, 2639, 2691, 3393, 4347, 4669, 5481, 6003, 6279, 7917, 8073, 8671, 10179, 14007, 18009, 18837, 23751, 26013, 42021, 56511, 60697, 71253, 78039, 126063, 182091, 234117, 546273, 1638819]

約数ペア:

[(1, 1638819), (3, 546273), (7, 234117), (9, 182091), (13, 126063), (21, 78039), (23, 71253), (27, 60697), (29, 56511), (39, 42021), (63, 26013), (69, 23751), (87, 18837), (91, 18009), (117, 14007), (161, 10179), (189, 8671), (203, 8073), (207, 7917), (261, 6279), (273, 6003), (299, 5481), (351, 4669), (377, 4347), (483, 3393), (609, 2691), (621, 2639), (667, 2457), (783, 2093), (819, 2001), (897, 1827), (1131, 1449)]