21854456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210139}}^1$

素因数の和:210158

約数の個数: 16

約数和(自身を含む): 44129400

約数和(自身を除く): 22274944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210139, 420278, 840556, 1681112, 2731807, 5463614, 10927228, 21854456]

約数ペア:

[(1, 21854456), (2, 10927228), (4, 5463614), (8, 2731807), (13, 1681112), (26, 840556), (52, 420278), (104, 210139)]