21057351

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43597}}^1$

素因数の和:43630

約数の個数: 16

約数和(自身を含む): 33483264

約数和(自身を除く): 12425913

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43597, 130791, 305179, 915537, 1002731, 3008193, 7019117, 21057351]

約数ペア:

[(1, 21057351), (3, 7019117), (7, 3008193), (21, 1002731), (23, 915537), (69, 305179), (161, 130791), (483, 43597)]