21438788

素因数分解:

$2^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{3373}}^1$

素因数の和:3611

約数の個数: 24

約数和(自身を含む): 43079232

約数和(自身を除く): 21640444

約数列:

[1, 2, 4, 7, 14, 28, 227, 454, 908, 1589, 3178, 3373, 6356, 6746, 13492, 23611, 47222, 94444, 765671, 1531342, 3062684, 5359697, 10719394, 21438788]

約数ペア:

[(1, 21438788), (2, 10719394), (4, 5359697), (7, 3062684), (14, 1531342), (28, 765671), (227, 94444), (454, 47222), (908, 23611), (1589, 13492), (3178, 6746), (3373, 6356)]