21384076

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20641}}^1$

素因数の和:20689

約数の個数: 24

約数和(自身を含む): 43926176

約数和(自身を除く): 22542100

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20641, 41282, 82564, 144487, 288974, 577948, 763717, 1527434, 3054868, 5346019, 10692038, 21384076]

約数ペア:

[(1, 21384076), (2, 10692038), (4, 5346019), (7, 3054868), (14, 1527434), (28, 763717), (37, 577948), (74, 288974), (148, 144487), (259, 82564), (518, 41282), (1036, 20641)]