19005777

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:698

約数の個数: 36

約数和(自身を含む): 32438016

約数和(自身を除く): 13432239

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 607, 639, 1491, 1821, 3479, 4249, 4473, 5463, 10437, 12747, 29743, 31311, 38241, 43097, 89229, 129291, 267687, 301679, 387873, 905037, 2111753, 2715111, 6335259, 19005777]

約数ペア:

[(1, 19005777), (3, 6335259), (7, 2715111), (9, 2111753), (21, 905037), (49, 387873), (63, 301679), (71, 267687), (147, 129291), (213, 89229), (441, 43097), (497, 38241), (607, 31311), (639, 29743), (1491, 12747), (1821, 10437), (3479, 5463), (4249, 4473)]