207974571

素因数分解:

$3^1\times 7^2\times {\mathrm{389}}^1\times {\mathrm{3637}}^1$

素因数の和:4043

約数の個数: 24

約数和(自身を含む): 323490960

約数和(自身を除く): 115516389

約数列:

[1, 3, 7, 21, 49, 147, 389, 1167, 2723, 3637, 8169, 10911, 19061, 25459, 57183, 76377, 178213, 534639, 1414793, 4244379, 9903551, 29710653, 69324857, 207974571]

約数ペア:

[(1, 207974571), (3, 69324857), (7, 29710653), (21, 9903551), (49, 4244379), (147, 1414793), (389, 534639), (1167, 178213), (2723, 76377), (3637, 57183), (8169, 25459), (10911, 19061)]