20878286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1973}}^1$

素因数の和:2036

約数の個数: 32

約数和(自身を含む): 37806048

約数和(自身を除く): 16927762

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 143, 286, 407, 481, 814, 962, 1973, 3946, 5291, 10582, 21703, 25649, 43406, 51298, 73001, 146002, 282139, 564278, 803011, 949013, 1606022, 1898026, 10439143, 20878286]

約数ペア:

[(1, 20878286), (2, 10439143), (11, 1898026), (13, 1606022), (22, 949013), (26, 803011), (37, 564278), (74, 282139), (143, 146002), (286, 73001), (407, 51298), (481, 43406), (814, 25649), (962, 21703), (1973, 10582), (3946, 5291)]