21511836

素因数分解:

$2^2\times 3^2\times {\mathrm{597551}}^1$

素因数の和:597561

約数の個数: 18

約数和(自身を含む): 54377232

約数和(自身を除く): 32865396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 597551, 1195102, 1792653, 2390204, 3585306, 5377959, 7170612, 10755918, 21511836]

約数ペア:

[(1, 21511836), (2, 10755918), (3, 7170612), (4, 5377959), (6, 3585306), (9, 2390204), (12, 1792653), (18, 1195102), (36, 597551)]