19481648

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4493}}^1$

素因数の和:4772

約数の個数: 20

約数和(自身を含む): 37893408

約数和(自身を除く): 18411760

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4493, 8986, 17972, 35944, 71888, 1217603, 2435206, 4870412, 9740824, 19481648]

約数ペア:

[(1, 19481648), (2, 9740824), (4, 4870412), (8, 2435206), (16, 1217603), (271, 71888), (542, 35944), (1084, 17972), (2168, 8986), (4336, 4493)]