21706575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 39747456

約数和(自身を除く): 18040881

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 83, 165, 249, 275, 317, 415, 825, 913, 951, 1245, 1585, 2075, 2739, 3487, 4565, 4755, 6225, 7925, 10461, 13695, 17435, 22825, 23775, 26311, 52305, 68475, 78933, 87175, 131555, 261525, 289421, 394665, 657775, 868263, 1447105, 1973325, 4341315, 7235525, 21706575]

約数ペア:

[(1, 21706575), (3, 7235525), (5, 4341315), (11, 1973325), (15, 1447105), (25, 868263), (33, 657775), (55, 394665), (75, 289421), (83, 261525), (165, 131555), (249, 87175), (275, 78933), (317, 68475), (415, 52305), (825, 26311), (913, 23775), (951, 22825), (1245, 17435), (1585, 13695), (2075, 10461), (2739, 7925), (3487, 6225), (4565, 4755)]