20204219

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 24864768

約数和(自身を除く): 4660549

約数列:

[1, 7, 31, 47, 49, 217, 283, 329, 1457, 1519, 1981, 2303, 8773, 10199, 13301, 13867, 61411, 71393, 93107, 412331, 429877, 651749, 2886317, 20204219]

約数ペア:

[(1, 20204219), (7, 2886317), (31, 651749), (47, 429877), (49, 412331), (217, 93107), (283, 71393), (329, 61411), (1457, 13867), (1519, 13301), (1981, 10199), (2303, 8773)]