21934280

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2459}}^1$

素因数の和:2693

約数の個数: 32

約数和(自身を含む): 49593600

約数和(自身を除く): 27659320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 2459, 4460, 4918, 8920, 9836, 12295, 19672, 24590, 49180, 98360, 548357, 1096714, 2193428, 2741785, 4386856, 5483570, 10967140, 21934280]

約数ペア:

[(1, 21934280), (2, 10967140), (4, 5483570), (5, 4386856), (8, 2741785), (10, 2193428), (20, 1096714), (40, 548357), (223, 98360), (446, 49180), (892, 24590), (1115, 19672), (1784, 12295), (2230, 9836), (2459, 8920), (4460, 4918)]