55707981

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139619}}^1$

素因数の和:139648

約数の個数: 16

約数和(自身を含む): 89356800

約数和(自身を除く): 33648819

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 139619, 418857, 977333, 2652761, 2931999, 7958283, 18569327, 55707981]

約数ペア:

[(1, 55707981), (3, 18569327), (7, 7958283), (19, 2931999), (21, 2652761), (57, 977333), (133, 418857), (399, 139619)]