21402156956

素因数分解:

$2^2\times {\mathrm{19391}}^1\times {\mathrm{275929}}^1$

素因数の和:295324

約数の個数: 12

約数和(自身を含む): 37455841920

約数和(自身を除く): 16053684964

約数列:

[1, 2, 4, 19391, 38782, 77564, 275929, 551858, 1103716, 5350539239, 10701078478, 21402156956]

約数ペア:

[(1, 21402156956), (2, 10701078478), (4, 5350539239), (19391, 1103716), (38782, 551858), (77564, 275929)]