19516287

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1193}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 32094720

約数和(自身を除く): 12578433

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 1193, 2337, 3579, 5453, 8351, 16359, 22667, 25053, 48913, 68001, 146739, 158669, 342391, 476007, 929347, 1027173, 2788041, 6505429, 19516287]

約数ペア:

[(1, 19516287), (3, 6505429), (7, 2788041), (19, 1027173), (21, 929347), (41, 476007), (57, 342391), (123, 158669), (133, 146739), (287, 68001), (399, 48913), (779, 25053), (861, 22667), (1193, 16359), (2337, 8351), (3579, 5453)]