21032907

素因数分解:

$3^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{719}}^1$

素因数の和:935

約数の個数: 24

約数和(自身を含む): 32832000

約数和(自身を除く): 11799093

約数列:

[1, 3, 7, 21, 49, 147, 199, 597, 719, 1393, 2157, 4179, 5033, 9751, 15099, 29253, 35231, 105693, 143081, 429243, 1001567, 3004701, 7010969, 21032907]

約数ペア:

[(1, 21032907), (3, 7010969), (7, 3004701), (21, 1001567), (49, 429243), (147, 143081), (199, 105693), (597, 35231), (719, 29253), (1393, 15099), (2157, 9751), (4179, 5033)]