21157212

素因数分解:

$2^2\times 3^1\times {\mathrm{307}}^1\times {\mathrm{5743}}^1$

素因数の和:6057

約数の個数: 24

約数和(自身を含む): 49536256

約数和(自身を除く): 28379044

約数列:

[1, 2, 3, 4, 6, 12, 307, 614, 921, 1228, 1842, 3684, 5743, 11486, 17229, 22972, 34458, 68916, 1763101, 3526202, 5289303, 7052404, 10578606, 21157212]

約数ペア:

[(1, 21157212), (2, 10578606), (3, 7052404), (4, 5289303), (6, 3526202), (12, 1763101), (307, 68916), (614, 34458), (921, 22972), (1228, 17229), (1842, 11486), (3684, 5743)]