21708676

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6949}}^1$

素因数の和:7035

約数の個数: 24

約数和(自身を含む): 42033600

約数和(自身を除く): 20324924

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6949, 13898, 27796, 76439, 152878, 305756, 493379, 986758, 1973516, 5427169, 10854338, 21708676]

約数ペア:

[(1, 21708676), (2, 10854338), (4, 5427169), (11, 1973516), (22, 986758), (44, 493379), (71, 305756), (142, 152878), (284, 76439), (781, 27796), (1562, 13898), (3124, 6949)]