21062041

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 28885248

約数和(自身を除く): 7823207

約数列:

[1, 7, 11, 13, 53, 77, 91, 143, 371, 397, 583, 689, 1001, 2779, 4081, 4367, 4823, 5161, 7579, 21041, 30569, 36127, 53053, 56771, 147287, 231451, 273533, 397397, 1620157, 1914731, 3008863, 21062041]

約数ペア:

[(1, 21062041), (7, 3008863), (11, 1914731), (13, 1620157), (53, 397397), (77, 273533), (91, 231451), (143, 147287), (371, 56771), (397, 53053), (583, 36127), (689, 30569), (1001, 21041), (2779, 7579), (4081, 5161), (4367, 4823)]