19870672

素因数分解:

$2^4\times {\mathrm{227}}^1\times {\mathrm{5471}}^1$

素因数の和:5706

約数の個数: 20

約数和(自身を含む): 38676096

約数和(自身を除く): 18805424

約数列:

[1, 2, 4, 8, 16, 227, 454, 908, 1816, 3632, 5471, 10942, 21884, 43768, 87536, 1241917, 2483834, 4967668, 9935336, 19870672]

約数ペア:

[(1, 19870672), (2, 9935336), (4, 4967668), (8, 2483834), (16, 1241917), (227, 87536), (454, 43768), (908, 21884), (1816, 10942), (3632, 5471)]