19653938

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 33384960

約数和(自身を除く): 13731022

約数列:

[1, 2, 17, 29, 31, 34, 58, 62, 493, 527, 643, 899, 986, 1054, 1286, 1798, 10931, 15283, 18647, 19933, 21862, 30566, 37294, 39866, 316999, 338861, 578057, 633998, 677722, 1156114, 9826969, 19653938]

約数ペア:

[(1, 19653938), (2, 9826969), (17, 1156114), (29, 677722), (31, 633998), (34, 578057), (58, 338861), (62, 316999), (493, 39866), (527, 37294), (643, 30566), (899, 21862), (986, 19933), (1054, 18647), (1286, 15283), (1798, 10931)]