21126542

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{827}}^1$

素因数の和:1123

約数の個数: 16

約数和(自身を含む): 32460912

約数和(自身を除く): 11334370

約数列:

[1, 2, 53, 106, 241, 482, 827, 1654, 12773, 25546, 43831, 87662, 199307, 398614, 10563271, 21126542]

約数ペア:

[(1, 21126542), (2, 10563271), (53, 398614), (106, 199307), (241, 87662), (482, 43831), (827, 25546), (1654, 12773)]