21000762315

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{875579}}^1$

素因数の和:875644

約数の個数: 48

約数和(自身を含む): 40157601120

約数和(自身を除く): 19156838805

約数列:

[1, 3, 5, 9, 13, 15, 39, 41, 45, 65, 117, 123, 195, 205, 369, 533, 585, 615, 1599, 1845, 2665, 4797, 7995, 23985, 875579, 2626737, 4377895, 7880211, 11382527, 13133685, 34147581, 35898739, 39401055, 56912635, 102442743, 107696217, 170737905, 179493695, 323088651, 466683607, 512213715, 538481085, 1400050821, 1615443255, 2333418035, 4200152463, 7000254105, 21000762315]

約数ペア:

[(1, 21000762315), (3, 7000254105), (5, 4200152463), (9, 2333418035), (13, 1615443255), (15, 1400050821), (39, 538481085), (41, 512213715), (45, 466683607), (65, 323088651), (117, 179493695), (123, 170737905), (195, 107696217), (205, 102442743), (369, 56912635), (533, 39401055), (585, 35898739), (615, 34147581), (1599, 13133685), (1845, 11382527), (2665, 7880211), (4797, 4377895), (7995, 2626737), (23985, 875579)]