19811290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{116537}}^1$

素因数の和:116561

約数の個数: 16

約数和(自身を含む): 37758312

約数和(自身を除く): 17947022

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 116537, 233074, 582685, 1165370, 1981129, 3962258, 9905645, 19811290]

約数ペア:

[(1, 19811290), (2, 9905645), (5, 3962258), (10, 1981129), (17, 1165370), (34, 582685), (85, 233074), (170, 116537)]