21402843

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{8423}}^1$

素因数の和:8455

約数の個数: 24

約数和(自身を含む): 35852544

約数和(自身を除く): 14449701

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 8423, 25269, 58961, 92653, 176883, 277959, 648571, 1019183, 1945713, 3057549, 7134281, 21402843]

約数ペア:

[(1, 21402843), (3, 7134281), (7, 3057549), (11, 1945713), (21, 1019183), (33, 648571), (77, 277959), (121, 176883), (231, 92653), (363, 58961), (847, 25269), (2541, 8423)]