28990521

素因数分解:

$3^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{977}}^1$

素因数の和:1150

約数の個数: 32

約数和(自身を含む): 49447680

約数和(自身を除く): 20457159

約数列:

[1, 3, 7, 9, 21, 27, 63, 157, 189, 471, 977, 1099, 1413, 2931, 3297, 4239, 6839, 8793, 9891, 20517, 26379, 29673, 61551, 153389, 184653, 460167, 1073723, 1380501, 3221169, 4141503, 9663507, 28990521]

約数ペア:

[(1, 28990521), (3, 9663507), (7, 4141503), (9, 3221169), (21, 1380501), (27, 1073723), (63, 460167), (157, 184653), (189, 153389), (471, 61551), (977, 29673), (1099, 26379), (1413, 20517), (2931, 9891), (3297, 8793), (4239, 6839)]