209990697

素因数分解:

$3^1\times 7^1\times {\mathrm{2617}}^1\times {\mathrm{3821}}^1$

素因数の和:6448

約数の個数: 16

約数和(自身を含む): 320191872

約数和(自身を除く): 110201175

約数列:

[1, 3, 7, 21, 2617, 3821, 7851, 11463, 18319, 26747, 54957, 80241, 9999557, 29998671, 69996899, 209990697]

約数ペア:

[(1, 209990697), (3, 69996899), (7, 29998671), (21, 9999557), (2617, 80241), (3821, 54957), (7851, 26747), (11463, 18319)]