21853779

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{1399}}^1$

素因数の和:1570

約数の個数: 16

約数和(自身を含む): 30105600

約数和(自身を除く): 8251821

約数列:

[1, 3, 41, 123, 127, 381, 1399, 4197, 5207, 15621, 57359, 172077, 177673, 533019, 7284593, 21853779]

約数ペア:

[(1, 21853779), (3, 7284593), (41, 533019), (123, 177673), (127, 172077), (381, 57359), (1399, 15621), (4197, 5207)]