21372686

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{839}}^1$

素因数の和:1159

約数の個数: 16

約数和(自身を含む): 32901120

約数和(自身を除く): 11528434

約数列:

[1, 2, 47, 94, 271, 542, 839, 1678, 12737, 25474, 39433, 78866, 227369, 454738, 10686343, 21372686]

約数ペア:

[(1, 21372686), (2, 10686343), (47, 454738), (94, 227369), (271, 78866), (542, 39433), (839, 25474), (1678, 12737)]