21891194

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{4231}}^1$

素因数の和:4445

約数の個数: 16

約数和(自身を含む): 35548800

約数和(自身を除く): 13657606

約数列:

[1, 2, 13, 26, 199, 398, 2587, 4231, 5174, 8462, 55003, 110006, 841969, 1683938, 10945597, 21891194]

約数ペア:

[(1, 21891194), (2, 10945597), (13, 1683938), (26, 841969), (199, 110006), (398, 55003), (2587, 8462), (4231, 5174)]