138540381

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{1049}}^1$

素因数の和:1409

約数の個数: 32

約数和(自身を含む): 223104000

約数和(自身を除く): 84563619

約数列:

[1, 3, 7, 19, 21, 57, 133, 331, 399, 993, 1049, 2317, 3147, 6289, 6951, 7343, 18867, 19931, 22029, 44023, 59793, 132069, 139517, 347219, 418551, 1041657, 2430533, 6597161, 7291599, 19791483, 46180127, 138540381]

約数ペア:

[(1, 138540381), (3, 46180127), (7, 19791483), (19, 7291599), (21, 6597161), (57, 2430533), (133, 1041657), (331, 418551), (399, 347219), (993, 139517), (1049, 132069), (2317, 59793), (3147, 44023), (6289, 22029), (6951, 19931), (7343, 18867)]