26181981

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 48844800

約数和(自身を除く): 22662819

約数列:

[1, 3, 7, 9, 19, 21, 23, 27, 57, 63, 69, 133, 161, 171, 189, 207, 317, 399, 437, 483, 513, 621, 951, 1197, 1311, 1449, 2219, 2853, 3059, 3591, 3933, 4347, 6023, 6657, 7291, 8559, 9177, 11799, 18069, 19971, 21873, 27531, 42161, 51037, 54207, 59913, 65619, 82593, 126483, 138529, 153111, 162621, 196857, 379449, 415587, 459333, 969703, 1138347, 1246761, 1377999, 2909109, 3740283, 8727327, 26181981]

約数ペア:

[(1, 26181981), (3, 8727327), (7, 3740283), (9, 2909109), (19, 1377999), (21, 1246761), (23, 1138347), (27, 969703), (57, 459333), (63, 415587), (69, 379449), (133, 196857), (161, 162621), (171, 153111), (189, 138529), (207, 126483), (317, 82593), (399, 65619), (437, 59913), (483, 54207), (513, 51037), (621, 42161), (951, 27531), (1197, 21873), (1311, 19971), (1449, 18069), (2219, 11799), (2853, 9177), (3059, 8559), (3591, 7291), (3933, 6657), (4347, 6023)]