21166504

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{49921}}^1$

素因数の和:49980

約数の個数: 16

約数和(自身を含む): 40436820

約数和(自身を除く): 19270316

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 49921, 99842, 199684, 399368, 2645813, 5291626, 10583252, 21166504]

約数ペア:

[(1, 21166504), (2, 10583252), (4, 5291626), (8, 2645813), (53, 399368), (106, 199684), (212, 99842), (424, 49921)]