21371057

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:760

約数の個数: 16

約数和(自身を含む): 23794560

約数和(自身を除く): 2423503

約数列:

[1, 17, 29, 67, 493, 647, 1139, 1943, 10999, 18763, 33031, 43349, 318971, 736933, 1257121, 21371057]

約数ペア:

[(1, 21371057), (17, 1257121), (29, 736933), (67, 318971), (493, 43349), (647, 33031), (1139, 18763), (1943, 10999)]