20444013

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2843}}^1$

素因数の和:2913

約数の個数: 24

約数和(自身を含む): 31943808

約数和(自身を除く): 11499795

約数列:

[1, 3, 9, 17, 47, 51, 141, 153, 423, 799, 2397, 2843, 7191, 8529, 25587, 48331, 133621, 144993, 400863, 434979, 1202589, 2271557, 6814671, 20444013]

約数ペア:

[(1, 20444013), (3, 6814671), (9, 2271557), (17, 1202589), (47, 434979), (51, 400863), (141, 144993), (153, 133621), (423, 48331), (799, 25587), (2397, 8529), (2843, 7191)]