25906251

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 42681600

約数和(自身を除く): 16775349

約数列:

[1, 3, 7, 21, 29, 49, 59, 87, 103, 147, 177, 203, 309, 413, 609, 721, 1239, 1421, 1711, 2163, 2891, 2987, 4263, 5047, 5133, 6077, 8673, 8961, 11977, 15141, 18231, 20909, 35931, 42539, 62727, 83839, 127617, 146363, 176233, 251517, 297773, 439089, 528699, 893319, 1233631, 3700893, 8635417, 25906251]

約数ペア:

[(1, 25906251), (3, 8635417), (7, 3700893), (21, 1233631), (29, 893319), (49, 528699), (59, 439089), (87, 297773), (103, 251517), (147, 176233), (177, 146363), (203, 127617), (309, 83839), (413, 62727), (609, 42539), (721, 35931), (1239, 20909), (1421, 18231), (1711, 15141), (2163, 11977), (2891, 8961), (2987, 8673), (4263, 6077), (5047, 5133)]