20107983

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3697}}^1$

素因数の和:3751

約数の個数: 24

約数和(自身を含む): 32039472

約数和(自身を除く): 11931489

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 3697, 5439, 11091, 25879, 77637, 136789, 181153, 410367, 543459, 957523, 2872569, 6702661, 20107983]

約数ペア:

[(1, 20107983), (3, 6702661), (7, 2872569), (21, 957523), (37, 543459), (49, 410367), (111, 181153), (147, 136789), (259, 77637), (777, 25879), (1813, 11091), (3697, 5439)]