221704077

素因数分解:

$3^1\times 7^2\times {\mathrm{449}}^1\times {\mathrm{3359}}^1$

素因数の和:3825

約数の個数: 24

約数和(自身を含む): 344736000

約数和(自身を除く): 123031923

約数列:

[1, 3, 7, 21, 49, 147, 449, 1347, 3143, 3359, 9429, 10077, 22001, 23513, 66003, 70539, 164591, 493773, 1508191, 4524573, 10557337, 31672011, 73901359, 221704077]

約数ペア:

[(1, 221704077), (3, 73901359), (7, 31672011), (21, 10557337), (49, 4524573), (147, 1508191), (449, 493773), (1347, 164591), (3143, 70539), (3359, 66003), (9429, 23513), (10077, 22001)]