21479982

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{87317}}^1$

素因数の和:87363

約数の個数: 16

約数和(自身を含む): 44008272

約数和(自身を除く): 22528290

約数列:

[1, 2, 3, 6, 41, 82, 123, 246, 87317, 174634, 261951, 523902, 3579997, 7159994, 10739991, 21479982]

約数ペア:

[(1, 21479982), (2, 10739991), (3, 7159994), (6, 3579997), (41, 523902), (82, 261951), (123, 174634), (246, 87317)]