31381161

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{227}}^2$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 49686720

約数和(自身を除く): 18305559

約数列:

[1, 3, 7, 21, 29, 87, 203, 227, 609, 681, 1589, 4767, 6583, 19749, 46081, 51529, 138243, 154587, 360703, 1082109, 1494341, 4483023, 10460387, 31381161]

約数ペア:

[(1, 31381161), (3, 10460387), (7, 4483023), (21, 1494341), (29, 1082109), (87, 360703), (203, 154587), (227, 138243), (609, 51529), (681, 46081), (1589, 19749), (4767, 6583)]