668556889

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{10949}}^1$

素因数の和:11041

約数の個数: 32

約数和(自身を含む): 912441600

約数和(自身を除く): 243884711

約数列:

[1, 7, 11, 13, 61, 77, 91, 143, 427, 671, 793, 1001, 4697, 5551, 8723, 10949, 61061, 76643, 120439, 142337, 667889, 843073, 996359, 1565707, 4675223, 7346779, 8682557, 10959949, 51427453, 60777899, 95508127, 668556889]

約数ペア:

[(1, 668556889), (7, 95508127), (11, 60777899), (13, 51427453), (61, 10959949), (77, 8682557), (91, 7346779), (143, 4675223), (427, 1565707), (671, 996359), (793, 843073), (1001, 667889), (4697, 142337), (5551, 120439), (8723, 76643), (10949, 61061)]