21037605

素因数分解:

$3^1\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1481}}^1$

素因数の和:2436

約数の個数: 16

約数和(自身を含む): 33718464

約数和(自身を除く): 12680859

約数列:

[1, 3, 5, 15, 947, 1481, 2841, 4443, 4735, 7405, 14205, 22215, 1402507, 4207521, 7012535, 21037605]

約数ペア:

[(1, 21037605), (3, 7012535), (5, 4207521), (15, 1402507), (947, 22215), (1481, 14205), (2841, 7405), (4443, 4735)]