20565741

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4513}}^1$

素因数の和:4561

約数の個数: 24

約数和(自身を含む): 32934144

約数和(自身を除く): 12368403

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4513, 4557, 13539, 31591, 94773, 139903, 221137, 419709, 663411, 979321, 2937963, 6855247, 20565741]

約数ペア:

[(1, 20565741), (3, 6855247), (7, 2937963), (21, 979321), (31, 663411), (49, 419709), (93, 221137), (147, 139903), (217, 94773), (651, 31591), (1519, 13539), (4513, 4557)]