21374241

素因数分解:

$3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1499}}^1$

素因数の和:1613

約数の個数: 24

約数和(自身を含む): 33516000

約数和(自身を除く): 12141759

約数列:

[1, 3, 7, 21, 49, 97, 147, 291, 679, 1499, 2037, 4497, 4753, 10493, 14259, 31479, 73451, 145403, 220353, 436209, 1017821, 3053463, 7124747, 21374241]

約数ペア:

[(1, 21374241), (3, 7124747), (7, 3053463), (21, 1017821), (49, 436209), (97, 220353), (147, 145403), (291, 73451), (679, 31479), (1499, 14259), (2037, 10493), (4497, 4753)]