21158932

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{14653}}^1$

素因数の和:14695

約数の個数: 18

約数和(自身を含む): 39082218

約数和(自身を除く): 17923286

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 14653, 29306, 58612, 278407, 556814, 1113628, 5289733, 10579466, 21158932]

約数ペア:

[(1, 21158932), (2, 10579466), (4, 5289733), (19, 1113628), (38, 556814), (76, 278407), (361, 58612), (722, 29306), (1444, 14653)]