21689644

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{547}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 39771648

約数和(自身を除く): 18082004

約数列:

[1, 2, 4, 23, 46, 92, 431, 547, 862, 1094, 1724, 2188, 9913, 12581, 19826, 25162, 39652, 50324, 235757, 471514, 943028, 5422411, 10844822, 21689644]

約数ペア:

[(1, 21689644), (2, 10844822), (4, 5422411), (23, 943028), (46, 471514), (92, 235757), (431, 50324), (547, 39652), (862, 25162), (1094, 19826), (1724, 12581), (2188, 9913)]