21291568

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{45887}}^1$

素因数の和:45924

約数の個数: 20

約数和(自身を含む): 42675840

約数和(自身を除く): 21384272

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 45887, 91774, 183548, 367096, 734192, 1330723, 2661446, 5322892, 10645784, 21291568]

約数ペア:

[(1, 21291568), (2, 10645784), (4, 5322892), (8, 2661446), (16, 1330723), (29, 734192), (58, 367096), (116, 183548), (232, 91774), (464, 45887)]