21419085

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5689}}^1$

素因数の和:5948

約数の個数: 16

約数和(自身を含む): 34413120

約数和(自身を除く): 12994035

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 5689, 17067, 28445, 85335, 1427939, 4283817, 7139695, 21419085]

約数ペア:

[(1, 21419085), (3, 7139695), (5, 4283817), (15, 1427939), (251, 85335), (753, 28445), (1255, 17067), (3765, 5689)]