21381682

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89839}}^1$

素因数の和:89865

約数の個数: 16

約数和(自身を含む): 38810880

約数和(自身を除く): 17429198

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 89839, 179678, 628873, 1257746, 1527263, 3054526, 10690841, 21381682]

約数ペア:

[(1, 21381682), (2, 10690841), (7, 3054526), (14, 1527263), (17, 1257746), (34, 628873), (119, 179678), (238, 89839)]