215852007

素因数分解:

$3^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{4783}}^1$

素因数の和:5107

約数の個数: 24

約数和(自身を含む): 335951616

約数和(自身を除く): 120099609

約数列:

[1, 3, 7, 21, 49, 147, 307, 921, 2149, 4783, 6447, 14349, 15043, 33481, 45129, 100443, 234367, 703101, 1468381, 4405143, 10278667, 30836001, 71950669, 215852007]

約数ペア:

[(1, 215852007), (3, 71950669), (7, 30836001), (21, 10278667), (49, 4405143), (147, 1468381), (307, 703101), (921, 234367), (2149, 100443), (4783, 45129), (6447, 33481), (14349, 15043)]