21869284

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{2399}}^1$

素因数の和:2499

約数の個数: 24

約数和(自身を含む): 39916800

約数和(自身を除く): 18047516

約数列:

[1, 2, 4, 43, 53, 86, 106, 172, 212, 2279, 2399, 4558, 4798, 9116, 9596, 103157, 127147, 206314, 254294, 412628, 508588, 5467321, 10934642, 21869284]

約数ペア:

[(1, 21869284), (2, 10934642), (4, 5467321), (43, 508588), (53, 412628), (86, 254294), (106, 206314), (172, 127147), (212, 103157), (2279, 9596), (2399, 9116), (4558, 4798)]