19538185

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4337}}^1$

素因数の和:4412

約数の個数: 16

約数和(自身を含む): 25299216

約数和(自身を除く): 5761031

約数列:

[1, 5, 17, 53, 85, 265, 901, 4337, 4505, 21685, 73729, 229861, 368645, 1149305, 3907637, 19538185]

約数ペア:

[(1, 19538185), (5, 3907637), (17, 1149305), (53, 368645), (85, 229861), (265, 73729), (901, 21685), (4337, 4505)]