20895836

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{30911}}^1$

素因数の和:30941

約数の個数: 18

約数和(自身を含む): 39598272

約数和(自身を除く): 18702436

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 30911, 61822, 123644, 401843, 803686, 1607372, 5223959, 10447918, 20895836]

約数ペア:

[(1, 20895836), (2, 10447918), (4, 5223959), (13, 1607372), (26, 803686), (52, 401843), (169, 123644), (338, 61822), (676, 30911)]