21357567

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10273}}^1$

素因数の和:10300

約数の個数: 32

約数和(自身を含む): 39452160

約数和(自身を除く): 18094593

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10273, 30819, 71911, 92457, 113003, 215733, 277371, 339009, 647199, 791021, 1017027, 1941597, 2373063, 3051081, 7119189, 21357567]

約数ペア:

[(1, 21357567), (3, 7119189), (7, 3051081), (9, 2373063), (11, 1941597), (21, 1017027), (27, 791021), (33, 647199), (63, 339009), (77, 277371), (99, 215733), (189, 113003), (231, 92457), (297, 71911), (693, 30819), (2079, 10273)]