21945044

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45341}}^1$

素因数の和:45367

約数の個数: 18

約数和(自身を含む): 42213402

約数和(自身を除く): 20268358

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45341, 90682, 181364, 498751, 997502, 1995004, 5486261, 10972522, 21945044]

約数ペア:

[(1, 21945044), (2, 10972522), (4, 5486261), (11, 1995004), (22, 997502), (44, 498751), (121, 181364), (242, 90682), (484, 45341)]