19940865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{189913}}^1$

素因数の和:189928

約数の個数: 16

約数和(自身を含む): 36463488

約数和(自身を除く): 16522623

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 189913, 569739, 949565, 1329391, 2848695, 3988173, 6646955, 19940865]

約数ペア:

[(1, 19940865), (3, 6646955), (5, 3988173), (7, 2848695), (15, 1329391), (21, 949565), (35, 569739), (105, 189913)]