621621

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:63

約数の個数: 64

約数和(自身を含む): 1290240

約数和(自身を除く): 668619

約数列:

[1, 3, 7, 9, 11, 13, 21, 23, 27, 33, 39, 63, 69, 77, 91, 99, 117, 143, 161, 189, 207, 231, 253, 273, 297, 299, 351, 429, 483, 621, 693, 759, 819, 897, 1001, 1287, 1449, 1771, 2079, 2093, 2277, 2457, 2691, 3003, 3289, 3861, 4347, 5313, 6279, 6831, 8073, 9009, 9867, 15939, 18837, 23023, 27027, 29601, 47817, 56511, 69069, 88803, 207207, 621621]

約数ペア:

[(1, 621621), (3, 207207), (7, 88803), (9, 69069), (11, 56511), (13, 47817), (21, 29601), (23, 27027), (27, 23023), (33, 18837), (39, 15939), (63, 9867), (69, 9009), (77, 8073), (91, 6831), (99, 6279), (117, 5313), (143, 4347), (161, 3861), (189, 3289), (207, 3003), (231, 2691), (253, 2457), (273, 2277), (297, 2093), (299, 2079), (351, 1771), (429, 1449), (483, 1287), (621, 1001), (693, 897), (759, 819)]