27931911

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1367}}^1$

素因数の和:1523

約数の個数: 24

約数和(自身を含む): 43666560

約数和(自身を除く): 15734649

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 1367, 2919, 4101, 6811, 9569, 20433, 28707, 66983, 190013, 200949, 570039, 1330091, 3990273, 9310637, 27931911]

約数ペア:

[(1, 27931911), (3, 9310637), (7, 3990273), (21, 1330091), (49, 570039), (139, 200949), (147, 190013), (417, 66983), (973, 28707), (1367, 20433), (2919, 9569), (4101, 6811)]