20707965

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9791}}^1$

素因数の和:9849

約数の個数: 24

約数和(自身を含む): 36661248

約数和(自身を除く): 15953283

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9791, 29373, 48955, 88119, 146865, 440595, 460177, 1380531, 2300885, 4141593, 6902655, 20707965]

約数ペア:

[(1, 20707965), (3, 6902655), (5, 4141593), (9, 2300885), (15, 1380531), (45, 460177), (47, 440595), (141, 146865), (235, 88119), (423, 48955), (705, 29373), (2115, 9791)]