20326719

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2609}}^1$

素因数の和:2679

約数の個数: 24

約数和(自身を含む): 32134320

約数和(自身を除く): 11807601

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 2609, 7791, 7827, 18263, 54789, 127841, 138277, 383523, 414831, 967939, 2903817, 6775573, 20326719]

約数ペア:

[(1, 20326719), (3, 6775573), (7, 2903817), (21, 967939), (49, 414831), (53, 383523), (147, 138277), (159, 127841), (371, 54789), (1113, 18263), (2597, 7827), (2609, 7791)]