21589964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6911}}^1$

素因数の和:6997

約数の個数: 24

約数和(自身を含む): 41803776

約数和(自身を除く): 20213812

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 6911, 13822, 27644, 76021, 152042, 304084, 490681, 981362, 1962724, 5397491, 10794982, 21589964]

約数ペア:

[(1, 21589964), (2, 10794982), (4, 5397491), (11, 1962724), (22, 981362), (44, 490681), (71, 304084), (142, 152042), (284, 76021), (781, 27644), (1562, 13822), (3124, 6911)]