178875081

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:1011

約数の個数: 64

約数和(自身を含む): 334172160

約数和(自身を除く): 155297079

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 97, 99, 189, 231, 291, 297, 679, 693, 873, 887, 1067, 2037, 2079, 2619, 2661, 3201, 6111, 6209, 7469, 7983, 9603, 9757, 18333, 18627, 22407, 23949, 28809, 29271, 55881, 67221, 68299, 86039, 87813, 167643, 201663, 204897, 258117, 263439, 602273, 614691, 774351, 946429, 1806819, 1844073, 2323053, 2839287, 5420457, 6625003, 8517861, 16261371, 19875009, 25553583, 59625027, 178875081]

約数ペア:

[(1, 178875081), (3, 59625027), (7, 25553583), (9, 19875009), (11, 16261371), (21, 8517861), (27, 6625003), (33, 5420457), (63, 2839287), (77, 2323053), (97, 1844073), (99, 1806819), (189, 946429), (231, 774351), (291, 614691), (297, 602273), (679, 263439), (693, 258117), (873, 204897), (887, 201663), (1067, 167643), (2037, 87813), (2079, 86039), (2619, 68299), (2661, 67221), (3201, 55881), (6111, 29271), (6209, 28809), (7469, 23949), (7983, 22407), (9603, 18627), (9757, 18333)]