21178262

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{739}}^1$

素因数の和:860

約数の個数: 32

約数和(自身を含む): 38361600

約数和(自身を除く): 17183338

約数列:

[1, 2, 7, 14, 23, 46, 89, 161, 178, 322, 623, 739, 1246, 1478, 2047, 4094, 5173, 10346, 14329, 16997, 28658, 33994, 65771, 118979, 131542, 237958, 460397, 920794, 1512733, 3025466, 10589131, 21178262]

約数ペア:

[(1, 21178262), (2, 10589131), (7, 3025466), (14, 1512733), (23, 920794), (46, 460397), (89, 237958), (161, 131542), (178, 118979), (322, 65771), (623, 33994), (739, 28658), (1246, 16997), (1478, 14329), (2047, 10346), (4094, 5173)]