25686507

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 46891008

約数和(自身を除く): 21204501

約数列:

[1, 3, 7, 11, 17, 21, 31, 33, 51, 77, 93, 119, 187, 211, 217, 231, 341, 357, 527, 561, 633, 651, 1023, 1309, 1477, 1581, 2321, 2387, 3587, 3689, 3927, 4431, 5797, 6541, 6963, 7161, 10761, 11067, 16247, 17391, 19623, 25109, 39457, 40579, 45787, 48741, 71951, 75327, 111197, 118371, 121737, 137361, 215853, 276199, 333591, 503657, 778379, 828597, 1223167, 1510971, 2335137, 3669501, 8562169, 25686507]

約数ペア:

[(1, 25686507), (3, 8562169), (7, 3669501), (11, 2335137), (17, 1510971), (21, 1223167), (31, 828597), (33, 778379), (51, 503657), (77, 333591), (93, 276199), (119, 215853), (187, 137361), (211, 121737), (217, 118371), (231, 111197), (341, 75327), (357, 71951), (527, 48741), (561, 45787), (633, 40579), (651, 39457), (1023, 25109), (1309, 19623), (1477, 17391), (1581, 16247), (2321, 11067), (2387, 10761), (3587, 7161), (3689, 6963), (3927, 6541), (4431, 5797)]