21075039

素因数分解:

$3^3\times {\mathrm{571}}^1\times {\mathrm{1367}}^1$

素因数の和:1947

約数の個数: 16

約数和(自身を含む): 31299840

約数和(自身を除く): 10224801

約数列:

[1, 3, 9, 27, 571, 1367, 1713, 4101, 5139, 12303, 15417, 36909, 780557, 2341671, 7025013, 21075039]

約数ペア:

[(1, 21075039), (3, 7025013), (9, 2341671), (27, 780557), (571, 36909), (1367, 15417), (1713, 12303), (4101, 5139)]