20047821

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{1009}}^1$

素因数の和:1228

約数の個数: 16

約数和(自身を含む): 27633600

約数和(自身を除く): 7585779

約数列:

[1, 3, 37, 111, 179, 537, 1009, 3027, 6623, 19869, 37333, 111999, 180611, 541833, 6682607, 20047821]

約数ペア:

[(1, 20047821), (3, 6682607), (37, 541833), (111, 180611), (179, 111999), (537, 37333), (1009, 19869), (3027, 6623)]