78381849

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{16889}}^1$

素因数の和:16929

約数の個数: 32

約数和(自身を含む): 136200960

約数和(自身を除く): 57819111

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 16889, 50667, 118223, 219557, 287113, 354669, 658671, 861339, 1536899, 2009791, 3732469, 4610697, 6029373, 11197407, 26127283, 78381849]

約数ペア:

[(1, 78381849), (3, 26127283), (7, 11197407), (13, 6029373), (17, 4610697), (21, 3732469), (39, 2009791), (51, 1536899), (91, 861339), (119, 658671), (221, 354669), (273, 287113), (357, 219557), (663, 118223), (1547, 50667), (4641, 16889)]