51813741

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 88473600

約数和(自身を除く): 36659859

約数列:

[1, 3, 7, 19, 21, 31, 57, 59, 71, 93, 133, 177, 213, 217, 399, 413, 497, 589, 651, 1121, 1239, 1349, 1491, 1767, 1829, 2201, 3363, 4047, 4123, 4189, 5487, 6603, 7847, 9443, 12369, 12567, 12803, 15407, 23541, 28329, 29323, 34751, 38409, 41819, 46221, 79591, 87969, 104253, 125457, 129859, 238773, 243257, 292733, 389577, 557137, 729771, 878199, 909013, 1671411, 2467321, 2727039, 7401963, 17271247, 51813741]

約数ペア:

[(1, 51813741), (3, 17271247), (7, 7401963), (19, 2727039), (21, 2467321), (31, 1671411), (57, 909013), (59, 878199), (71, 729771), (93, 557137), (133, 389577), (177, 292733), (213, 243257), (217, 238773), (399, 129859), (413, 125457), (497, 104253), (589, 87969), (651, 79591), (1121, 46221), (1239, 41819), (1349, 38409), (1491, 34751), (1767, 29323), (1829, 28329), (2201, 23541), (3363, 15407), (4047, 12803), (4123, 12567), (4189, 12369), (5487, 9443), (6603, 7847)]