21207426

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:910

約数の個数: 32

約数和(自身を含む): 44513280

約数和(自身を除く): 23305854

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 239, 478, 643, 717, 1286, 1434, 1929, 3858, 5497, 10994, 14789, 16491, 29578, 32982, 44367, 88734, 153677, 307354, 461031, 922062, 3534571, 7069142, 10603713, 21207426]

約数ペア:

[(1, 21207426), (2, 10603713), (3, 7069142), (6, 3534571), (23, 922062), (46, 461031), (69, 307354), (138, 153677), (239, 88734), (478, 44367), (643, 32982), (717, 29578), (1286, 16491), (1434, 14789), (1929, 10994), (3858, 5497)]