21385938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{787}}^1$

素因数の和:1446

約数の個数: 32

約数和(自身を含む): 49019904

約数和(自身を除く): 27633966

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 647, 787, 1294, 1574, 1941, 2361, 3882, 4529, 4722, 5509, 9058, 11018, 13587, 16527, 27174, 33054, 509189, 1018378, 1527567, 3055134, 3564323, 7128646, 10692969, 21385938]

約数ペア:

[(1, 21385938), (2, 10692969), (3, 7128646), (6, 3564323), (7, 3055134), (14, 1527567), (21, 1018378), (42, 509189), (647, 33054), (787, 27174), (1294, 16527), (1574, 13587), (1941, 11018), (2361, 9058), (3882, 5509), (4529, 4722)]