21029418

素因数分解:

$2^1\times 3^2\times {\mathrm{1168301}}^1$

素因数の和:1168309

約数の個数: 12

約数和(自身を含む): 45563778

約数和(自身を除く): 24534360

約数列:

[1, 2, 3, 6, 9, 18, 1168301, 2336602, 3504903, 7009806, 10514709, 21029418]

約数ペア:

[(1, 21029418), (2, 10514709), (3, 7009806), (6, 3504903), (9, 2336602), (18, 1168301)]