28020411

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:233

約数の個数: 40

約数和(自身を含む): 43751664

約数和(自身を除く): 15731253

約数列:

[1, 3, 9, 27, 53, 61, 81, 107, 159, 183, 321, 477, 549, 963, 1431, 1647, 2889, 3233, 4293, 4941, 5671, 6527, 8667, 9699, 17013, 19581, 29097, 51039, 58743, 87291, 153117, 176229, 261873, 345931, 459351, 528687, 1037793, 3113379, 9340137, 28020411]

約数ペア:

[(1, 28020411), (3, 9340137), (9, 3113379), (27, 1037793), (53, 528687), (61, 459351), (81, 345931), (107, 261873), (159, 176229), (183, 153117), (321, 87291), (477, 58743), (549, 51039), (963, 29097), (1431, 19581), (1647, 17013), (2889, 9699), (3233, 8667), (4293, 6527), (4941, 5671)]