21617656

素因数分解:

$2^3\times {\mathrm{1621}}^1\times {\mathrm{1667}}^1$

素因数の和:3294

約数の個数: 16

約数和(自身を含む): 40582440

約数和(自身を除く): 18964784

約数列:

[1, 2, 4, 8, 1621, 1667, 3242, 3334, 6484, 6668, 12968, 13336, 2702207, 5404414, 10808828, 21617656]

約数ペア:

[(1, 21617656), (2, 10808828), (4, 5404414), (8, 2702207), (1621, 13336), (1667, 12968), (3242, 6668), (3334, 6484)]