21413777

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8971}}^1$

素因数の和:9020

約数の個数: 16

約数和(自身を含む): 27561984

約数和(自身を除く): 6148207

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8971, 62797, 98681, 278101, 690767, 1946707, 3059111, 21413777]

約数ペア:

[(1, 21413777), (7, 3059111), (11, 1946707), (31, 690767), (77, 278101), (217, 98681), (341, 62797), (2387, 8971)]