21681741

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{6301}}^1$

素因数の和:6372

約数の個数: 16

約数和(自身を含む): 30652928

約数和(自身を除く): 8971187

約数列:

[1, 3, 31, 37, 93, 111, 1147, 3441, 6301, 18903, 195331, 233137, 585993, 699411, 7227247, 21681741]

約数ペア:

[(1, 21681741), (3, 7227247), (31, 699411), (37, 585993), (93, 233137), (111, 195331), (1147, 18903), (3441, 6301)]