21821046585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{193939}}^1$

素因数の和:194537

約数の個数: 32

約数和(自身を含む): 37664699520

約数和(自身を除く): 15843652935

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 577, 1731, 2885, 7501, 8655, 22503, 37505, 112515, 193939, 581817, 969695, 2521207, 2909085, 7563621, 12606035, 37818105, 111902803, 335708409, 559514015, 1454736439, 1678542045, 4364209317, 7273682195, 21821046585]

約数ペア:

[(1, 21821046585), (3, 7273682195), (5, 4364209317), (13, 1678542045), (15, 1454736439), (39, 559514015), (65, 335708409), (195, 111902803), (577, 37818105), (1731, 12606035), (2885, 7563621), (7501, 2909085), (8655, 2521207), (22503, 969695), (37505, 581817), (112515, 193939)]