21097468

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3571}}^1$

素因数の和:3793

約数の個数: 24

約数和(自身を含む): 42406784

約数和(自身を除く): 21309316

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 3571, 5908, 7142, 14284, 24997, 49994, 99988, 753481, 1506962, 3013924, 5274367, 10548734, 21097468]

約数ペア:

[(1, 21097468), (2, 10548734), (4, 5274367), (7, 3013924), (14, 1506962), (28, 753481), (211, 99988), (422, 49994), (844, 24997), (1477, 14284), (2954, 7142), (3571, 5908)]